Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Jan. 01, 2019 USD ($)
Schedule of Significant Accounting Policies [Line Items]
Minimum period to liquidate	12 months
Number of operating segments | segment	1
Operating right of use assets	$ 84,661	$ 93,643
Total operating lease liabilities	$ 104,551
ASU 2016-02
Schedule of Significant Accounting Policies [Line Items]
Operating right of use assets			$ 59,900
Total operating lease liabilities			$ 77,300
Minimum
Schedule of Significant Accounting Policies [Line Items]
Investment maturity period, non-current	1 year
Maximum
Schedule of Significant Accounting Policies [Line Items]
Investment maturity period, current	1 year
Investment maturity period, non-current	2 years