Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Goodwill and other intangible assets	$ 10,952	$ 11,879
Stock-based compensation	7,550	7,428
Deferred compensation	5,184	5,310
Warranty	11,679	8,809
Inventory	6,572	5,974
Other	5,000	4,922
Total deferred tax assets	46,937	44,322
Fixed assets	(14,948)	(14,931)
Net deferred tax assets	$ 31,989	$ 29,391