v3.20.4
Share Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands |
12 Months Ended |
|
|
|
Share-based Compensation Arrangement by Share-based Payment Award |
|
|
|
Number of shares available for future equity awards (in shares) |
10,600,000
|
|
|
Share-based compensation |
$ 37,273
|
$ 31,136
|
$ 28,921
|
Vesting Term, Minimum |
1 year
|
|
|
Vesting Term, Maximum |
3 years
|
|
|
Payments Related to Tax Withholding for Share-based Compensation |
$ 7,799
|
$ 3,818
|
1,367
|
Key assumptions in fair value determination |
|
|
|
Stock option expiration date (in years) |
ten
|
|
|
Stock options, additional disclosures |
|
|
|
Weighted average fair value, Granted (in dollars per share) |
$ 19.97
|
|
|
Weighted average remaining contractual term, Outstanding, end of period (in years) |
5 years 9 months 18 days
|
6 years 9 months 18 days
|
|
Weighted average remaining contractual term, Exercisable, end of period (in years) |
4 years 1 month 6 days
|
|
|
Aggregate intrinsic value, Outstanding, beginning of period |
$ 47,834
|
|
|
Aggregate intrinsic value, Outstanding, end of period |
128,411
|
$ 47,834
|
|
Aggregate intrinsic value, Exercisable at end of period |
$ 86,005
|
|
|
Other information relative to restricted unit activity |
|
|
|
Employee stock purchase program discount percentage |
15.00%
|
|
|
Shared-based Compensation |
$ 37,300
|
31,100
|
28,900
|
Shared-based Payment Arrangement, Amounts Withheld for Tax Withholding |
7,800
|
$ 3,800
|
$ 1,400
|
Employee Stock Option |
|
|
|
Share-based Compensation Arrangement by Share-based Payment Award |
|
|
|
Total unrecognized compensation |
$ 8,500
|
|
|
Remaining weighted average expense recognition period (in years) |
1 year 9 months 18 days
|
|
|
Key assumptions in fair value determination |
|
|
|
Weighted average expected lives (in years) |
4 years 3 months 18 days
|
4 years 6 months
|
4 years 6 months
|
Forfeiture rate, minimum (in hundredths) |
7.00%
|
7.30%
|
7.30%
|
Dividend yield, minimum (in hundredths) |
1.50%
|
1.40%
|
1.60%
|
Stock option activity |
|
|
|
Outstanding, beginning of period (in shares) |
2,817,519
|
|
|
Granted (in shares) |
443,967
|
|
|
Exercised (in shares) |
(1,269,533)
|
|
|
Canceled (in shares) |
(59,543)
|
|
|
Outstanding, end of period (in shares) |
1,932,410
|
2,817,519
|
|
Exercisable, end of period (in shares) |
1,199,968
|
|
|
Stock options, additional disclosures |
|
|
|
Weighted average exercise price, Outstanding, beginning of period (in dollars per share) |
$ 75.34
|
|
|
Weighted average exercise price, Granted (in dollars per share) |
94.62
|
|
|
Weighted average exercise price, Exercised (in dollars per share) |
74.17
|
|
|
Weighted average exercise price, Cancelled (in dollars per share) |
78.93
|
|
|
Weighted average exercise price, Outstanding, end of period (in dollars per share) |
80.44
|
$ 75.34
|
|
Weighted average exercise price, Exercisable, end of period (in dollars per share) |
$ 75.21
|
|
|
Other information relative to option activity |
|
|
|
Total fair value of stock options vested |
$ 12,546
|
$ 16,060
|
$ 18,247
|
Total intrinsic value of stock options exercised |
64,395
|
45,101
|
43,476
|
Employee Stock Purchase Plan |
|
|
|
Share-based Compensation Arrangement by Share-based Payment Award |
|
|
|
Share-based compensation |
$ 1,400
|
$ 1,100
|
$ 1,100
|
Discount rate of employee stock purchase plan (in hundredths) |
15.00%
|
|
|
Shares of common stock issued for employee stock purchase plan (in shares) |
63,704
|
61,678
|
77,458
|
Shares of common stock reserved for future issuance under the ESPP (in shares) |
11,800,000
|
|
|
Employee Stock Purchase Plan | Maximum |
|
|
|
Share-based Compensation Arrangement by Share-based Payment Award |
|
|
|
Shares of common stock reserved for future issuance under the ESPP (in shares) |
16,000,000.0
|
|
|
Restricted Stock Units (RSUs) [Member] |
|
|
|
Share-based Compensation Arrangement by Share-based Payment Award |
|
|
|
Total unrecognized compensation |
$ 28,200
|
|
|
Remaining weighted average expense recognition period (in years) |
1 year 10 months 24 days
|
|
|
Shares issued as a result of vested restricted stock units (in shares) |
186,751
|
103,124
|
53,714
|
Payments Related to Tax Withholding for Share-based Compensation |
$ 7,799
|
$ 3,818
|
$ 1,367
|
Restricted stock units |
|
|
|
Restricted, beginning of period (in shares) |
543,406
|
|
|
Granted (in shares) |
322,485
|
|
|
Exercised (in shares) |
(238,987)
|
|
|
Forfeited (in shares) |
(31,259)
|
|
|
Restricted, end of period (in shares) |
595,645
|
543,406
|
|
Restricted stock units, additional disclosures |
|
|
|
Weighted average grant date fair value, Restricted, beginning of period (in dollars per share) |
$ 73.55
|
|
|
Weighted average grant date fair value, Granted (in dollars per share) |
96.41
|
|
|
Weighted average grant date fair value, Exercised (in dollars per share) |
75.05
|
|
|
Weighted average grant date fair value, Forfeited (in dollars per share) |
80.90
|
|
|
Weighted average grant date fair value, Restricted, end of period (in dollars per share) |
$ 85.27
|
$ 73.55
|
|
Other information relative to restricted unit activity |
|
|
|
Total grant date fair value of restricted units vested and exercised |
$ 17,935
|
$ 8,301
|
5,325
|
Total intrinsic value of restricted units vested and exercised |
$ 23,011
|
$ 10,623
|
$ 5,364
|
Shares Paid for Tax Withholding for Share Based Compensation |
81,946
|
41,786
|
17,131
|
Performance-Based Restricted Share Units |
|
|
|
Share-based Compensation Arrangement by Share-based Payment Award |
|
|
|
Total unrecognized compensation |
$ 8,500
|
|
|
Remaining weighted average expense recognition period (in years) |
1 year 6 months
|
|
|
Restricted stock units |
|
|
|
Restricted, beginning of period (in shares) |
93,461
|
|
|
Granted (in shares) |
83,368
|
|
|
Exercised (in shares) |
(29,710)
|
|
|
Forfeited (in shares) |
(3,851)
|
|
|
Restricted, end of period (in shares) |
143,268
|
93,461
|
|
Restricted stock units, additional disclosures |
|
|
|
Weighted average grant date fair value, Restricted, beginning of period (in dollars per share) |
$ 75.97
|
|
|
Weighted average grant date fair value, Granted (in dollars per share) |
88.76
|
|
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Weighted average grant date fair value, Exercised (in dollars per share) |
63.77
|
|
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Weighted average grant date fair value, Forfeited (in dollars per share) |
74.91
|
|
|
Weighted average grant date fair value, Restricted, end of period (in dollars per share) |
$ 87.94
|
$ 75.97
|
|
Other information relative to restricted unit activity |
|
|
|
Total grant date fair value of restricted units vested and exercised |
$ 1,895
|
$ 2,035
|
$ 0
|
Total intrinsic value of restricted units vested and exercised |
$ 2,826
|
$ 2,666
|
$ 0
|
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