Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax receivables	$ 10,061		$ 10,061		$ 17,924
Income taxes payable	19,645		19,645		$ 14,154
Income tax expense/(benefit)	2,250	$ 7,767	4,006	$ 26,515
Net discrete tax expense (gain)	100	$ 2,600	400	$ 2,500
Deferred tax expense, valuation deferred tax assets	$ 1,000		$ 400
Effective tax rate	20.00%	24.30%	30.20%	28.10%
Estimated effective tax rate	30.20%	30.60%	30.20%	30.60%