Property and Equipment Property and Equipment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 20,963	$ 15,457	$ 12,457
Depreciation expense, cost of goods sold	$ 5,300	$ 4,000	$ 3,300