Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Impairment of Intangible Assets (Excluding Goodwill)			$ 78,000
Amortization of stock-based compensation	$ 39,825	$ 47,274	41,930
Shipping, Handling and Transportation Costs	$ 79,257	$ 77,399	$ 85,591