Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Increase in valuation allowance related to changes in the estimated tax benefit of foreign and state operating losses	$ 22,899
Liability for unrecognized tax benefits	70,202	$ 68,214	$ 40,382
Unrecognized tax benefits that would impact effective tax rate	66,607
Increase in liability for unrecognized tax benefits	1,988
Accrued interest and penalties related to unrecognized tax benefits, net of federal tax benefits	17,864	$ 14,428
Capital Loss Carryforward
Income Taxes [Line Items]
State capital loss carryforward, amount	$ 297,748
State capital loss carryforward, expiration date	Dec. 31, 2024
Domestic Tax Authority
Income Taxes [Line Items]
Net operating loss carryforwards	$ 99,657
Operating loss carryforwards, expiration date	Dec. 31, 2036
Domestic Tax Authority | Tax Year 2029
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2029
State
Income Taxes [Line Items]
Net operating loss carryforwards	$ 488,070
Operating loss carryforwards, expiration date	Dec. 31, 2040
Foreign Tax Authority
Income Taxes [Line Items]
Net operating loss carryforwards	$ 296,451
Operating loss carryforwards, expiration date	Dec. 31, 2021