Income Taxes (Schedule of Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income tax based on income from continuing operations	$ 15,165	$ 13,251	$ 26,107	$ 24,583
Provision for change in estimated tax rate	66	(218)	66	(218)
Income tax before discrete items	15,231	13,033	26,173	24,365
Discrete tax expense:
Exercise of U.S. stock options	0	(14)	(9)	(156)
Impact of amended tax returns	(17)	0	(98)	0
True-up of prior year estimated taxes	(612)	22	(508)	(1,421)
Enacted tax legislation and rate change	0	352	0	352
Provision for/resolution of tax audits and contingencies, net	(146)	0	(140)	278
Other	2	53	38	68
Total income tax expense	$ 14,458	$ 13,446	$ 25,456	$ 23,486
Effective income tax rate reconciliation, percent	28.20%	29.50%	28.20%	29.50%