Property and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Property and Equipment, net
Property and equipment, gross	$ 90,034		$ 90,034		$ 98,051
Less: Accumulated depreciation	(73,649)		(73,649)		(79,171)
Total property and equipment, net	16,385		16,385		18,880
Property and equipment capitalized but not placed in service	800		800		1,000
Total depreciation and amortization expense	4,408	$ 4,894	13,677	$ 13,176
Amortization	2,700	2,800	8,500	8,400
Property and Equipment
Property and Equipment, net
Total depreciation and amortization expense	2,800	$ 3,300	8,900	$ 9,200
Computer equipment and internally developed software
Property and Equipment, net
Property and equipment, gross	84,154		84,154		87,830
Furniture and fixtures
Property and Equipment, net
Property and equipment, gross	962		962		1,527
Leasehold improvements
Property and Equipment, net
Property and equipment, gross	$ 4,918		$ 4,918		$ 8,694