Income Taxes - Narrative (Details) - USD ($)	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]
Effective tax rate, percentage	24.50%	25.40%	28.00%	22.30%
AMT tax credit refund	$ 102,482,000		$ 102,482,000
Total amount of uncertain tax positions	33,243,000		33,243,000		$ 31,516,000
Unrecognized tax benefits that would impact effective tax rate	33,243,000		33,243,000		33,243,000
Accrued interest liability	$ 0		$ 0		$ 0