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Income Taxes - Schedule of Effective Reconciliation of the U.S. Statutory Federal Income Tax Rates (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Tax provision at statutory rate $ 189,287 $ 173,029 $ 171,258
State income taxes, net of federal benefit 39,098 35,507 36,396
Other, net 297 (105) 2,191
Total provision for income taxes $ 228,682 $ 208,431 $ 209,845