XML 96 R79.htm IDEA: XBRL DOCUMENT
v3.22.4

Commitments and Contingencies (Details) - USD ($) |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 16, 2022 | Sep. 15, 2022 | May 10, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Jul. 31, 2021
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchase obligation |  |  |  |  |  | $ 131,000,000
Purchase obligation, to be paid, year one |  |  |  |  |  | 22,000,000
Purchase obligation, to be paid, year two |  |  |  |  |  | 25,000,000
Purchase obligation, to be paid, year three |  |  |  |  |  | 28,000,000
Purchase obligation, to be paid, year four |  |  |  |  |  | 28,000,000
Purchase obligation, to be paid, year five |  |  |  |  |  | $ 28,000,000
Payments for purchase obligation |  |  |  | $ 33,100,000 |  |
Outstanding letters of credit |  |  |  | $ 12,000,000 | $ 11,200,000 |
Pegasystems Litigation | Misappropriation Of Trade Secrets |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Damages awarded |  |  | $ 2,036,000,000.000 |  |  |
Pegasystems Litigation | Violation of Virginia Computer Crimes Act |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Damages awarded |  |  | $ 1 |  |  |
Pegasystems Litigation | Attorney's Fees Associated |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Damages awarded | $ 23,600,000 |  |  |  |  |
Pegasystems Litigation | Statutory Post Judgement Interest On Judgmental |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Damages awarded | $ 122,000,000 |  |  |  |  |
Interest on damages awarded (as a percentage) | 6.00% |  |  |  |  |
Youyong Zou Litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Amount awarded in settlement |  | $ 5,000 |  |  |  |

X
- Definition Loss Contingency, Damages Awarded, Interest, Percentage + References No definition available. + Details
Name: | appn_LossContingencyDamagesAwardedInterestPercentage
Namespace Prefix: | appn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments For Purchase Obligation + References No definition available. + Details
Name: | appn_PaymentsForPurchaseObligation
Namespace Prefix: | appn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyDamagesAwardedValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of purchase arrangement to be paid in fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | us-gaap_PurchaseObligationDueInFifthYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | us-gaap_PurchaseObligationDueInFourthYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | us-gaap_PurchaseObligationDueInNextTwelveMonths
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | us-gaap_PurchaseObligationDueInSecondYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of purchase arrangement to be paid in third fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
Name: | us-gaap_PurchaseObligationDueInThirdYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_LitigationCaseAxis=appn_PegasystemsLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=appn_MisappropriationOfTradeSecretsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=appn_ViolationOfVirginiaComputerCrimesActMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=appn_AttorneysFeesAssociatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=appn_StatutoryPostJudgementInterestOnJudgmentalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=appn_YouyongZouLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |