Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Statutory U.S. federal rate	21.00%	21.00%	35.00%
Operating loss carryforwards, valuation allowance	$ 6,000	$ 19,000
Unrecognized tax benefits	53,509	52,159	$ 131,608	$ 152,581
Unrecognized tax benefits recognition impact on effective tax rate	48,000
Interest on income taxes accrued net of related benefit	12,000	14,000	21,000
Interest on income tax expense net of related tax benefit	(1,000)	$ (7,000)	$ 3,000
Possible decrease in uncertain tax position	$ 10,000
Minimum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Combination of subsidiaries	3 years
Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Combination of subsidiaries	4 years