Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 12,839,000	$ 12,163,000	$ 24,732,000	$ 14,858,000
Discrete tax expense (benefit)	3,200,000	800,000	9,600,000	(1,100,000)
Current federal tax benefit	0	$ 0	0	$ 0
Reasonably possible changes to unrecognized tax benefits related to settlement of tax audits and/or expiration of statutes of limitations within the next twelve months	$ 7,000,000		$ 7,000,000