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
Capital lease asset	$ 2,994		$ 2,994		$ 2,994
Property and equipment, gross including capital lease	148,540		148,540		130,386
Accumulated depreciation	(100,523)		(100,523)		(69,127)
Property and equipment, net	48,017		48,017		61,259
Depreciation of fixed assets, including the amortization of capitalized software	21,100	$ 3,900	31,400	$ 11,400
Capitalization of software development costs	4,300		12,100
Amortization of capitalized software	2,700	1,300	7,400	3,800
Net book value of capitalized software development costs	28,100		28,100		23,400
Impairments of property and equipment	0	$ 0	0	$ 0
Amount of accelerated depreciation	15,800		15,800
Net book value of assets	2,100		2,100
Building
Property and Equipment, Net
Property and equipment, gross	19,653		19,653		19,653
Computer hardware
Property and Equipment, Net
Property and equipment, gross	39,753		39,753		35,006
Capitalized internal-use software
Property and Equipment, Net
Property and equipment, gross	37,097		37,097		25,567
Purchased computer software
Property and Equipment, Net
Property and equipment, gross	22,785		22,785		22,079
Furniture and fixtures
Property and Equipment, Net
Property and equipment, gross	3,413		3,413		2,980
Office equipment
Property and Equipment, Net
Property and equipment, gross	232		232		211
Leasehold improvements
Property and Equipment, Net
Property and equipment, gross	8,385		8,385		8,255
Construction in progress
Property and Equipment, Net
Property and equipment, gross					15
Internal-use software in progress
Property and Equipment, Net
Property and equipment, gross	$ 14,228		$ 14,228		$ 13,626