Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Beginning and Ending Amount of Gross Unrecognized Tax Benefits (Details)

v3.20.4
Income Taxes - Reconciliation of Beginning and Ending Amount of Gross Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Beginning Balance $ 86,000 $ 41,074 $ 30,051
Gross increases for tax positions related to current year 24,648 22,800 12,927
Gross increases for tax positions related to prior year 0 22,126 704
Gross decreases for tax positions related to prior year (47) 0 (2,608)
Ending Balance $ 110,601 $ 86,000 $ 41,074