Significant Accounting Policies Major Components of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Raw materials and purchased components	$ 170,942	$ 167,569
Service parts, garments and accessories	192,903	189,731
Finished goods	387,527	388,970
Less: reserves	(41,368)	(36,269)
Inventories	$ 710,004	$ 710,001