Summary of Significant Accounting Policies - Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2021
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Computer equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Buildings and leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Furniture, fixtures, vehicles and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Furniture, fixtures, vehicles and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years