Acquisitions - Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jul. 18, 2024	Mar. 08, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 803,084			$ 488,918	$ 486,337	$ 486,026
TASK Group Holdings Limited
Acquired Finite-Lived Intangible Assets [Line Items]
Cash		$ 4,179
Short-term investments		562
Accounts receivable		7,105
Property and equipment		1,030
Lease right-of-use assets		3,418
Prepaid and other acquired assets		1,916
Goodwill		181,442
Total assets		281,552
Accounts payable		4,212
Accrued expenses		3,502
Lease right-of-use liabilities		3,397
Deferred revenue		4,710
Deferred taxes		20,263
Consideration paid		245,468
TASK Group Holdings Limited | Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets		32,100
TASK Group Holdings Limited | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets		48,000
TASK Group Holdings Limited | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets		$ 1,800
Stuzo Acquisition
Acquired Finite-Lived Intangible Assets [Line Items]
Cash	4,244		$ 4,244
Accounts receivable	1,262		2,208
Property and equipment	307		307
Prepaid and other acquired assets	774		774
Goodwill	136,602		132,140
Total assets	209,689		208,273
Accounts payable	317		317
Accrued expenses	4,053		4,459
Deferred revenue	7,680		5,443
Deferred taxes	7,934		8,349
Consideration paid	189,705		189,705
Stuzo Acquisition | Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	18,200		18,200
Stuzo Acquisition | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	39,400		39,000
Stuzo Acquisition | Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	5,400		6,600
Stuzo Acquisition | Non-competition agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	$ 3,500		$ 4,800