Employee Benefit Plans - Employee Savings Plans (Details) - Employee Savings Plan - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Defined contribution, maximum employee contribution, percentage of eligible compensation	50.00%
Defined contribution, maximum annual contributions per employee, percent	4.00%	4.00%	4.00%
Defined contribution, maximum annual contributions per employee	$ 11,600	$ 11,400	$ 11,200
Defined contribution, total expenses	$ 54,000,000	$ 46,000,000	$ 45,000,000