Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income before provision for income taxes	$ 55,962	$ 49,744	$ 88,443	$ 128,292
Income tax expense using estimated annual effective income tax rate	16,784	14,844	26,497	38,378
Changes in effective tax rates	66	(785)	0	0
Impact of discrete items, net	973	(323)	1,264	(434)
Income tax expense	$ 17,823	$ 13,736	$ 27,761	$ 37,944