Property and Equipment, net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property and Equipment, net
Property and equipment, gross	$ 194,064	$ 177,031
Less - accumulated depreciation and amortization	(138,525)	(121,919)
Depreciable assets, net	55,539	55,112
Land	1,418	1,275
Property and equipment, net	$ 56,957	56,387
Buildings
Property and Equipment, net
Useful life in years	30 years
Property and equipment, gross	$ 1,620	1,456
Data processing equipment
Property and Equipment, net
Property and equipment, gross	$ 178,367	162,761
Data processing equipment | Minimum
Property and Equipment, net
Useful life in years	3 years
Data processing equipment | Maximum
Property and Equipment, net
Useful life in years	5 years
Furniture and equipment
Property and Equipment, net
Property and equipment, gross	$ 9,869	9,154
Furniture and equipment | Minimum
Property and Equipment, net
Useful life in years	3 years
Furniture and equipment | Maximum
Property and Equipment, net
Useful life in years	20 years
Leasehold improvements
Property and Equipment, net
Property and equipment, gross	$ 4,208	$ 3,660
Leasehold improvements | Minimum
Property and Equipment, net
Useful life in years	5 years
Leasehold improvements | Maximum
Property and Equipment, net
Useful life in years	10 years