Property, Plant and Equipment, net - Schedule of Property, Plant and Equipment, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, net	$ 12,366	$ 13,102
Property, plant, and equipment, excluding internal-use software
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	14,148	17,782
Less: Accumulated depreciation and amortization	(10,857)	(12,837)
Property, plant and equipment, net	3,291	4,945
Computer equipment and software
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 9,267	12,332
Computer equipment and software | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Useful life (in years)	3 years
Computer equipment and software | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Useful life (in years)	5 years
Furniture and equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 1,060	1,168
Furniture and equipment | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Useful life (in years)	5 years
Furniture and equipment | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Useful life (in years)	7 years
Leasehold and building improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 3,821	4,282
Software Development And Construction In Progress Software Development
Property, Plant and Equipment, Net, by Type [Abstract]
Less: Accumulated depreciation and amortization	(35,321)	(31,947)
Property, plant and equipment, net	9,075	8,157
Internal-use software
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	43,314	38,488
Construction in progress - Internal-use software
Property, Plant and Equipment, Net, by Type [Abstract]
Property, plant and equipment, gross	$ 1,082	$ 1,616