Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Effective tax rate	14.10%	16.40%
U.S. statutory rate	21.00%	21.00%
Provision for income taxes	$ 16,257,000	$ 23,946,000
Unrecognized tax benefits that would have a favorable impact on effective tax rate	$ 100,000