v3.19.3.a.u2
Cover Page - USD ($)
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12 Months Ended |
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| Document and Entity Information [Line Items] |
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| Document Type |
10-K
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| Document Annual Report |
true
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| Document Period End Date |
Dec. 31, 2019
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| Document Transition Report |
false
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| Entity File Number |
001-38098
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| Entity Registrant Name |
APPIAN CORPORATION
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| Entity Incorporation, State or Country Code |
DE
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| Entity Tax Identification Number |
54-1956084
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| Entity Address, Address Line One |
7950 Jones Branch Drive
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| Entity Address, City or Town |
Tysons
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| Entity Address, State or Province |
VA
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| Entity Address, Postal Zip Code |
20190
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| City Area Code |
703
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| Local Phone Number |
442-8844
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| Title of 12(b) Security |
Class A Common Stock
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| Trading Symbol |
APPN
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| Security Exchange Name |
NASDAQ
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| Entity Well-known Seasoned Issuer |
Yes
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| Entity Voluntary Filers |
No
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| Entity Current Reporting Status |
Yes
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| Entity Interactive Data Current |
Yes
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| Entity Filer Category |
Large Accelerated Filer
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| Entity Small Business |
false
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| Entity Emerging Growth Company |
false
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| Entity Shell Company |
false
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| Documents Incorporated by Reference |
Portions of the registrant's definitive Proxy Statement for its 2020 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K are incorporated by reference in Part III, Items 10-14 of this Annual Report on Form 10-K.
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| Entity Central Index Key |
0001441683
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| Current Fiscal Year End Date |
--12-31
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| Document Fiscal Year Focus |
2019
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| Document Fiscal Period Focus |
FY
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| Amendment Flag |
false
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| Class A Common Stock |
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| Document and Entity Information [Line Items] |
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| Entity Public Float |
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$ 832,771,572
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| Entity Common Stock, Shares Outstanding |
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34,562,551
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| Class B Common Stock |
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| Document and Entity Information [Line Items] |
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| Entity Public Float |
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$ 89,268,922
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| Entity Common Stock, Shares Outstanding |
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32,922,636
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-Publisher SEC
-Name Forms 10-K, 20-F, 40-F
-Number 240
-Section 15
-Subsection d-1
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-Section 12
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-Number 240
-Section 12
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-Section 12
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