Income Taxes (Deferred Tax Liabilities (Assets)) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Depreciation	$ 7,697	$ 7,556
Goodwill	41,842	38,610
Intangible assets	5,632	6,171
Other	6,878	6,158
Gross deferred tax liabilities	62,049	58,495
Equity compensation	(7,496)	(9,530)
Other	(15,682)	(13,939)
Gross deferred tax assets	(23,178)	(23,469)
Valuation allowances	111	298
Deferred tax assets, net of valuation allowances	(23,067)	(23,171)
Net deferred tax liabilities	$ 38,982	$ 35,324