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Related-Party Transactions - Relationship with HandsOn Global Management (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) agreement	Sep. 30, 2022 USD ($)	Dec. 31, 2016
Related-Party Transactions
Amount of related party transaction	$ 2,845	$ 2,016	$ 8,696	$ 6,189
Related party expense	2,845	2,016	8,696	6,189
HGM \| Travel Expense
Related-Party Transactions
Amount of related party transaction	0
HGM \| Travel Expense \| Maximum
Related-Party Transactions
Amount of related party transaction		100	$ 100	100
HGM \| Master Service Agreement
Related-Party Transactions
Number of master agreements \| agreement			10
Entities affiliated with HGM managed funds \| Master Service Agreement
Related-Party Transactions
Revenue share percentage					25.00%
Affiliate of largest stockholder
Related-Party Transactions
Rental expenses		100	$ 100	200
Affiliate of largest stockholder \| Maximum
Related-Party Transactions
Rental expenses	100
HOV Services, Ltd \| Data Capture And Technology Services \| Cost of revenue
Related-Party Transactions
Amount of related party transaction	500	400	1,300	1,100
SourceHOV \| Master Service Agreement
Related-Party Transactions
Revenue share percentage					75.00%
SourceHOV \| Entities affiliated with HGM managed funds \| Master Service Agreement
Related-Party Transactions
Related party expense	$ 2,200	$ 1,500	$ 6,700	$ 4,600