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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Income Tax Disclosure [Abstract]          
Income tax expense $ 17,219 $ 15,753 $ 44,875 $ 33,504  
Gross unrecognized tax benefits $ 31,100   $ 31,100   $ 32,600