XML 58 R43.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Accounting Policies - Capitalized Contract Costs (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Capitalized Contract Cost [Roll Forward] |  |
Beginning balance | $ 85,984 | $ 73,685
Additional contract costs deferred | 53,894 | 49,816
Amortization of deferred contract costs | (45,853) | (37,517)
Ending balance | $ 94,025 | $ 85,984

X
- Definition Capitalized Contract Cost, Deferrals + References No definition available. + Details
Name: | appn_CapitalizedContractCostDeferrals
Namespace Prefix: | appn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Capitalized Contract Cost + References No definition available. + Details
Name: | appn_CapitalizedContractCostRollForward
Namespace Prefix: | appn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-3 + Details
Name: | us-gaap_CapitalizedContractCostAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-3 + Details
Name: | us-gaap_CapitalizedContractCostNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant