Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Valuation allowance	$ 32,602	$ 26,046
Increase in valuation allowance	6,600
Foreign earnings repatriated	985,700
Unrecognized tax benefits including accrued interest and penalties	29,500	32,600	$ 67,800
Unrecognized tax benefits, income tax penalties and interest accrued	7,700	7,800	11,800
Income tax interest and penalties expense	1,200	$ 1,100	$ 1,300
Unrecognized tax benefits that, if recognized, would impact the effective income tax rate	29,500
Unrecognized tax benefits that may be recognized	9,600
Estimate of possible charge	41,000
Stat tax credits	$ 27,000