Basis of Presentation - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2021
Variable Interest Entity [Line Items]
Number of variable interest entities		ten
Maximus [Member]
Variable Interest Entity [Line Items]
Percentage of Joint venture	50.00%
Joint venture equity method investment	$ 250,000
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Number of variable interest entities primary beneficiary		five
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Number of variable interest entities not a primary beneficiary		five