v2.4.0.8
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EMPLOYEE BENEFIT PLANS (Details)
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0 Months Ended |
12 Months Ended |
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12 Months Ended |
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12 Months Ended |
0 Months Ended |
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12 Months Ended |
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12 Months Ended |
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USD ($)
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USD ($)
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USD ($)
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USD ($)
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Restricted Stock And Restricted Stock Units [Member]
USD ($)
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Restricted Stock And Restricted Stock Units [Member]
USD ($)
|
Restricted Stock And Restricted Stock Units [Member]
USD ($)
|
Restricted Stock And Restricted Stock Units [Member]
USD ($)
|
Non Employee Grants [Member]
|
Non Employee Grants [Member]
USD ($)
|
Employee Stock Option [Member]
USD ($)
|
Employee Stock Option [Member]
USD ($)
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Employee Stock Option [Member]
USD ($)
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Plan 2007 [Member]
|
Plan 2007 [Member]
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Plan 2007 [Member]
Employee Stock Option [Member]
USD ($)
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Plan 2007 [Member]
Employee Stock Option [Member]
USD ($)
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Plan 2007 [Member]
Employee Stock Option [Member]
USD ($)
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Plan 2003 [Member]
|
Chief Executive Officer [Member]
Retirement Agreement [Member]
USD ($)
|
Senior Vice President, Operations [Member]
|
Senior Vice President, Commercial [Member]
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Senior Vice President, Administration [Member]
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Senior Vice President, General Counsel [Member]
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Fair Value, Inputs, Level 1 [Member]
USD ($)
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Fair Value, Inputs, Level 1 [Member]
USD ($)
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Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Equity Securities [Member]
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Equity Securities [Member]
|
Debt Securities [Member]
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Debt Securities [Member]
|
Real Estate [Member]
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Real Estate [Member]
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Other Plan Assets [Member]
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Other Plan Assets [Member]
|
Cash and cash equivalents [Member]
USD ($)
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Cash and cash equivalents [Member]
USD ($)
|
Cash and cash equivalents [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Cash and cash equivalents [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Cash and cash equivalents [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Cash and cash equivalents [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Cash and cash equivalents [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Cash and cash equivalents [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
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Equity Investments UK [Member]
USD ($)
|
Equity Investments UK [Member]
USD ($)
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Equity Investments UK [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
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Equity Investments UK [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Equity Investments UK [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Equity Investments UK [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Equity Investments UK [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Equity Investments UK [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Equity Investments Non UK [Member]
USD ($)
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Equity Investments Non UK [Member]
USD ($)
|
Equity Investments Non UK [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
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Equity Investments Non UK [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Equity Investments Non UK [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Equity Investments Non UK [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Equity Investments Non UK [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Equity Investments Non UK [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
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Diviersified Growth Funds [Member]
USD ($)
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Diviersified Growth Funds [Member]
USD ($)
|
Diviersified Growth Funds [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
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Diviersified Growth Funds [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
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Diviersified Growth Funds [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Diviersified Growth Funds [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Diviersified Growth Funds [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Diviersified Growth Funds [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Government debt securities [Member]
USD ($)
|
Government debt securities [Member]
USD ($)
|
Government debt securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Government debt securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Government debt securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Government debt securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Government debt securities [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Government debt securities [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Corporate Debt Securities [Member]
USD ($)
|
Corporate Debt Securities [Member]
USD ($)
|
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Corporate Debt Securities [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Group Insurance Policies [Member]
USD ($)
|
Group Insurance Policies [Member]
USD ($)
|
Group Insurance Policies [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Group Insurance Policies [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
|
Group Insurance Policies [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Group Insurance Policies [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
|
Group Insurance Policies [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
Group Insurance Policies [Member]
Fair Value, Inputs, Level 3 [Member]
USD ($)
|
UK Pension Plan [Member]
USD ($)
|
UK Pension Plan [Member]
GBP (£)
|
UK Pension Plan [Member]
|
UK Pension Plan [Member]
|
UK Pension Plan [Member]
Pilot [Member]
|
UK Pension Plan [Member]
Other Employee [Member]
|
Norway pension plan [Member]
USD ($)
|
Norway pension plan [Member]
|
Norway pension plan [Member]
|
Norway pension plan [Member]
Pilot [Member]
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Norway pension plan [Member]
Other Employee [Member]
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Norway pension plan [Member]
Minimum [Member]
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| Compensation Related Costs [Line Items] |
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| Defined Contribution Pension Match |
|
3.00% |
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| Defined Contribution Pension |
|
3.00% |
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| Defined Contribution Amount |
|
$ 12,700,000 |
$ 10,900,000 |
$ 10,700,000 |
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| Annual Rate Increase Limit |
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5.00% |
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| Closed Plan Maximum Contribution |
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7.35% |
7.00% |
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| Minimum Contribution Match |
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5.00% |
5.00% |
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| Retirement Age |
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58 |
62 |
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| Years of Service For Maximum Pension |
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30 |
| Change in Benefit Obligation |
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| Projected benefit obligation (PBO)- beginning balance |
|
606,313,000 |
561,633,000 |
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| Service cost |
|
7,886,000 |
8,209,000 |
6,332,000 |
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| Interest cost |
|
26,861,000 |
25,683,000 |
28,208,000 |
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| Actuarial loss |
|
(29,313,000) |
63,393,000 |
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| Benefit payments and expenses |
|
(23,234,000) |
(23,652,000) |
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| Effect of exchange rate changes |
|
(49,128,000) |
28,953,000 |
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| Projected benefit obligation (PBO)- ending balance |
|
637,641,000 |
606,313,000 |
561,633,000 |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Change in Plan Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Market value of assets - beginning balance |
|
479,666,000 |
449,891,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
48,685,000 |
1,973,000 |
440,835,000 |
428,104,000 |
49,589,000 |
|
|
|
|
|
|
|
|
48,685,000 |
1,973,000 |
48,685,000 |
1,973,000 |
0 |
0 |
0 |
0 |
118,712,000 |
119,626,000 |
0 |
0 |
118,712,000 |
119,626,000 |
0 |
0 |
96,537,000 |
89,720,000 |
0 |
0 |
96,537,000 |
89,720,000 |
0 |
0 |
105,207,000 |
94,426,000 |
0 |
0 |
105,207,000 |
94,426,000 |
0 |
0 |
51,853,000 |
61,028,000 |
0 |
0 |
51,853,000 |
61,028,000 |
0 |
0 |
68,526,000 |
63,304,000 |
0 |
0 |
68,526,000 |
63,304,000 |
0 |
0 |
61,298,000 |
49,589,000 |
0 |
0 |
0 |
0 |
61,298,000 |
49,589,000 |
|
|
|
|
|
|
|
|
|
|
|
|
| Actual return on assets |
|
23,630,000 |
47,974,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7,514,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Employer Contributions |
|
28,974,000 |
28,607,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20,800,000 |
12,500,000 |
|
|
|
|
|
|
|
|
|
|
| Effect of exchange rate changes on plan assets |
|
(41,782,000) |
23,154,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,284,000) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Accrued pension liabilities |
|
86,823,000 |
126,647,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Accumulated benefit obligation (ABO) |
|
611,782,000 |
582,047,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amounts recognized in accumulated other comprehensive loss |
|
232,848,000 |
244,322,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Market value of assets - ending balance |
|
550,818,000 |
479,666,000 |
449,891,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
48,685,000 |
1,973,000 |
440,835,000 |
428,104,000 |
61,298,000 |
|
|
|
|
|
|
|
|
48,685,000 |
1,973,000 |
48,685,000 |
1,973,000 |
0 |
0 |
0 |
0 |
118,712,000 |
119,626,000 |
0 |
0 |
118,712,000 |
119,626,000 |
0 |
0 |
96,537,000 |
89,720,000 |
0 |
0 |
96,537,000 |
89,720,000 |
0 |
0 |
105,207,000 |
94,426,000 |
0 |
0 |
105,207,000 |
94,426,000 |
0 |
0 |
51,853,000 |
61,028,000 |
0 |
0 |
51,853,000 |
61,028,000 |
0 |
0 |
68,526,000 |
63,304,000 |
0 |
0 |
68,526,000 |
63,304,000 |
0 |
0 |
61,298,000 |
49,589,000 |
0 |
0 |
0 |
0 |
61,298,000 |
49,589,000 |
|
|
|
|
|
|
|
|
|
|
|
|
| Components of net periodic pension cost |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Expected return on assets |
|
(29,282,000) |
(29,068,000) |
(29,639,000) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amortization of unrecognized losses |
|
7,705,000 |
6,612,000 |
5,386,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Net periodic pension cost |
|
13,170,000 |
11,436,000 |
10,287,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount in Accumulated OCI expected to be recognized in following fiscal year |
|
4,800,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Assumptions Used [Abstract] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Discount rate |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4.40% |
4.40% |
4.90% |
5.60% |
|
|
4.00% |
3.50% |
4.75% |
|
|
|
| Expected long-term rate of return on assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6.29% |
6.29% |
6.90% |
7.20% |
|
|
3.25% |
4.50% |
4.75% |
|
|
|
| Rate of compensation increase |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3.30% |
3.30% |
3.00% |
3.50% |
|
|
1.25% |
0.75% |
1.75% |
|
|
|
| Salary escalation rate |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4.25% |
4.25% |
4.50% |
|
|
|
| Social Security base rate |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4.00% |
4.00% |
4.25% |
|
|
|
| Defined Benefit Plan, Assets, Target Allocations [Abstract] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Actual allocation of plan assets |
|
100.00% |
100.00% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
59.10% |
64.60% |
27.60% |
31.00% |
1.50% |
1.80% |
11.80% |
2.60% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Target allocation of plan assets |
|
100.00% |
100.00% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
57.80% |
58.30% |
30.80% |
31.10% |
0.00% |
0.00% |
11.40% |
10.60% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Estimated cash contributions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
21,200,000 |
|
|
|
|
|
7,900,000 |
|
|
|
|
|
| Net purchases, sales and settlements |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,479,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Projected benefit payments by year [Abstract] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2015 |
|
27,229,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2016 |
|
28,464,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2017 |
|
29,381,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2018 |
|
30,305,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2019 |
|
31,230,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate 2020 - 2024 |
|
167,674,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Rabbi Trust investments |
|
6,599,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Incentive Compensation [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Common Stock Shares reserved |
|
4,454,714 |
|
|
|
|
|
|
|
|
|
|
|
5,400,000 |
2,400,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Shares available for grant |
|
2,992,841 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
250,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Performance Cash Maximum Potential Payout |
|
14,000,000 |
9,300,000 |
8,000,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Performance Cash Compensation Expense |
|
8,700,000 |
10,200,000 |
4,100,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Additional compensation expense |
|
|
|
|
|
|
|
|
|
100,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock based compensation expense |
|
15,433,000 |
11,869,000 |
11,510,000 |
|
9,400,000 |
7,400,000 |
7,200,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Shares Outstanding |
|
1,002,156 |
1,150,519 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock option grants- shares |
|
302,678 |
|
|
|
|
|
|
5,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Exercise of stock options |
|
(433,608) |
(416,936) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock options expired or forfeited- shares |
|
(17,433) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Stock options exercisable- shares |
|
471,431 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average exercise price of options oustanding |
|
$ 48.62 |
$ 40.03 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average exercise price of options granted |
|
$ 62.66 |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 62.66 |
$ 43.38 |
$ 43.79 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average exercise price of options exercised |
|
$ 35.51 |
$ 36.67 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average exercise price of options expired or forfeited |
|
$ 51.49 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average exercise price of options exercisable |
|
$ 43.22 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average remaining contractual life of options outstanding |
|
6 years 11 months 13 days |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average remaining contractual life of options exercisable |
|
5 years 1 month 17 days |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate intrinsic value options outstanding |
|
15,228,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate intrinsic value options exercisable |
|
26,956,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Risk free interest rate |
|
|
|
|
|
|
|
|
|
|
1.01% |
0.75% |
1.50% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Expected life (years) |
|
|
|
|
|
|
|
|
|
|
5 years |
5 years |
6 years |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Volatility |
|
|
|
|
|
|
|
|
|
|
48.70% |
50.20% |
47.10% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Dividend yield |
|
|
|
|
|
|
|
|
|
|
1.60% |
1.83% |
1.37% |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average grant-date fair value of options granted |
|
|
|
|
|
|
|
|
|
|
$ 23.77 |
$ 16.73 |
$ 17.32 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unrecognized stock-based compensation expense |
|
|
|
|
10,000,000 |
|
|
|
|
|
5,000,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Weighted average period to recognize unrecognized stock-based compensation expense |
|
|
|
|
2 years |
|
|
|
|
|
1 year 8 months 13 days |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unvested stock options - shares |
|
|
|
|
459,717 |
|
|
|
|
|
530,725 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Fair value option vested |
|
|
|
|
|
|
|
|
|
|
5,100,000 |
3,900,000 |
3,100,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Intrinsic value options exercised |
|
|
|
|
|
|
|
|
|
|
15,500,000 |
6,300,000 |
2,200,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Cash received from options exercised |
|
|
|
|
|
|
|
|
|
|
15,400,000 |
15,300,000 |
5,300,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Tax benefit attributable to options exercised |
|
5,700,000 |
500,000 |
400,000 |
|
|
|
|
|
|
5,400,000 |
1,900,000 |
500,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Tax benefit related to stock-based compensation |
|
5,723,000 |
500,000 |
354,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Restricted stock and restricted stock units [rollforward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Non-vested restricted stock and restricted stock units |
|
459,717 |
500,029 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Restricted stock grants- shares |
|
232,364 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12,784 |
14,330 |
13,206 |
12,223 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
| Restricted stock forfeited- shares |
|
(34,554) |
|
|
|
|
|
|
|
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|
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|
|
| Restricted stock vested- shares |
|
(238,122) |
|
|
|
|
|
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|
| Non-vested weighted average grant date fair value per unit |
|
$ 52.13 |
$ 38.63 |
|
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|
| Restricted stock grants- fair value |
$ 71.18 |
$ 64.99 |
|
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|
|
| Restricted stock forfeited- fair value |
|
$ 57.30 |
|
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|
|
| Restricted stock vested- fair value |
|
$ 35.59 |
|
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|
| Bonus |
|
17,200,000 |
12,200,000 |
9,700,000 |
|
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|
|
| One Time Bonus |
|
|
3,300,000 |
|
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|
|
| Contributions to deferred compensation plan |
|
900,000 |
700,000 |
600,000 |
|
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|
|
| Lump Sum Cash Payment |
|
|
|
|
|
|
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|
|
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|
|
|
3,800,000 |
|
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| Compensation |
|
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|
|
|
|
|
|
|
|
1,900,000 |
|
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|
|
| Officer Compensation Expense |
|
$ 2,900,000 |
$ 2,000,000 |
$ 2,300,000 |
|
|
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|
| X |
- Definition
The additional compensation expense recorded related to implementation of retirement rule allowing vesting of stock options, restricted stock and restricted stock units once certain age and employment criteria are met.
+ References+ Details
| Name: |
brs_AdditionalCompensationExpense |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
The plan limits the rate of annual increases in pensionable salary to the lesser of annual increases in UK price inflation or this percentage.
+ References+ Details
| Name: |
brs_AnnualRateIncreaseLimit |
| Namespace Prefix: |
brs_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
The amount of cash bonuses to key employees in accordance with the Annual Incentive Compensation Plan.
+ References+ Details
| Name: |
brs_CashBonus |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
The maximum percentage of a participant's non-variable salary.
+ References+ Details
| Name: |
brs_ClosedPlanMaximumContribution |
| Namespace Prefix: |
brs_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
The amount of contributions by the employer to a deferred compensation plan.
+ References+ Details
| Name: |
brs_ContributionsToDeferredCompensationPlan |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
The annual percentage of employees' compensation contributed at the end of each calendar year to defined contribution plan.
+ References+ Details
| Name: |
brs_DefinedContributionPension |
| Namespace Prefix: |
brs_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
The number of unvested stock option shares as of the balance sheet date.
+ References+ Details
| Name: |
brs_EmployeeServiceShareBasedCompensationNonvestedAwardsNumberOfShares |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares in accordance with the terms of the arrangement.
+ References+ Details
| Name: |
brs_EmployeeServiceShareBasedCompensationVestedAwardsFairValue |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
Amount of lump sum cash payment that would be payable as severance under the employment agreement that was in effect prior to the execution of the retirement and consulting agreement.
+ References+ Details
| Name: |
brs_LumpSumCashPayment |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- Definition
The members minimum percentage of non-variable salary for Bristow Helicopters to match the contribution.
+ References+ Details
| Name: |
brs_MinimumContributionMatch |
| Namespace Prefix: |
brs_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
The amount of compensation expense including expenses recorded for the acceleration of unvested stock options and restricted stock related to the separation between the Company and an officer.
+ References+ Details
| Name: |
brs_OfficerCompensationExpense |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
The total amount of of a one-time cash bonus paid out to all employees.
+ References+ Details
| Name: |
brs_OneTimeBonus |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
Defined benefit pension plans pilots retirement age.
+ References+ Details
| Name: |
brs_RetirementAge |
| Namespace Prefix: |
brs_ |
| Data Type: |
xbrli:integerItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
Expected social security base amount for Bristow Norway defined benefit pension plan.
+ References+ Details
| Name: |
brs_SocialSecurityBaseRate |
| Namespace Prefix: |
brs_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Aggregate number of common shares reserved for future issuance.
+ References+ Details
| Name: |
us-gaap_CommonStockCapitalSharesReservedForFutureIssuance |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
This represents the noncurrent liability recognized in the balance sheet that is associated with the defined benefit pension plans.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
instant |
|
| X |
- Definition
For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
instant |
|
| X |
- Definition
The pretax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- Definition
The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost)
-URI http://asc.fasb.org/extlink&oid=6504192
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost)
-URI http://asc.fasb.org/extlink&oid=6504226
+ Details
| Name: |
us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanActuarialGainLoss |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- Definition
The amount of gains or losses recognized in net periodic benefit cost.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
duration |
|
| X |
- Definition
Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Details
| Name: |
us-gaap_DefinedBenefitPlanAssetsTargetAllocationsAbstract |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Expected rate of compensation increases (for pay-related plans).
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
The interest rate used to adjust for the time value of money.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Glossary Expected Long-Term Rate of Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512013
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920
+ Details
| Name: |
us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Expected rate of compensation increases (for pay-related plans).
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.
+ References+ Details
| Name: |
us-gaap_DefinedBenefitPlanBenefitObligation |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.
+ References+ Details
| Name: |
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| Balance Type: |
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| Period Type: |
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| X |
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The increase in the fair value of plan assets from contributions made by the employer.
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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.
+ References+ Details
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| X |
- Definition
Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.
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| X |
- Definition
Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.
+ References+ Details
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| X |
- Definition
Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.
+ References+ Details
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- Definition
Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.
+ References+ Details
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| X |
- Definition
Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.
+ References+ Details
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- Definition
An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Glossary Expected Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512136
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Glossary Expected Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512171
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(3)
-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920
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- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.
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- Definition
Amount of gain (loss) from foreign currency exchange rate changes for benefit obligation for plans of a foreign operation whose functional currency is not the reporting currency.
+ References+ Details
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- Definition
The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.
+ References+ Details
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| Period Type: |
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| X |
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.
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The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.
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- Definition
Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations.
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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.
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| X |
- Definition
Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.
+ References+ Details
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| Period Type: |
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- Definition
Target allocation of investments of this type to total plan assets presented on a weighted average basis.
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- Definition
Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.
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- Definition
The amount of the cost recognized during the period for defined contribution plans.
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| Period Type: |
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- Definition
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.
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| Period Type: |
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| X |
- Definition
Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.
+ References+ Details
| Name: |
us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions |
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| Data Type: |
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| Balance Type: |
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| Period Type: |
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- Definition
Unrecognized cost of unvested share-based compensation awards.
+ References+ Details
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| Period Type: |
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- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
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| Period Type: |
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- Definition
Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.
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Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.
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| Balance Type: |
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- Definition
Other investments not otherwise specified in the taxonomy.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 12
-Article 5
Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 1
-Subparagraph g
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(f,g))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910
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| Period Type: |
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Expenditures for salaries other than officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold.
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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.
+ References+ Details
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| Data Type: |
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| Balance Type: |
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| Period Type: |
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- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.
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- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).
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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).
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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.
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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.
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| Period Type: |
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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.
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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.
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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.
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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.D.2)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section D
-Subsection 2
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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.
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The risk-free interest rate assumption that is used in valuing an option on its own shares.
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- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.
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| Period Type: |
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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.
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| X |
- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:perShareItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References+ Details
| Name: |
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1 |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:durationItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |
|
| X |
- Definition
For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Weighted average price of options that were either forfeited or expired.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:perShareItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Net number of share options (or share units) granted during the period.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:perShareItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- Definition
Number of options outstanding, including both vested and non-vested options.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:perShareItemType |
| Balance Type: |
na |
| Period Type: |
instant |
|
| X |
- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References+ Details
| Name: |
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:durationItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:perShareItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.
+ References+ Details
| Name: |
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
num:perShareItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Definition
Number of share options (or share units) exercised during the current period.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.28,29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5
+ Details
| Name: |
us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:sharesItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
|
