Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 76,936	$ 67,745	$ 54,447
State	11,759	10,158	7,359
Foreign	3,171	2,791	(188)
Total Current	91,866	80,694	61,618
Deferred:
Federal	9,991	6,395	7,616
State	2,365	1,427	1,750
Foreign	5,813	(370)	2,891
Total Deferred	18,169	7,452	12,257
Total	$ 110,035	$ 88,146	$ 73,875

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

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