Goodwill and Identified Intangible Assets Goodwill and Intangible Assets - Estimated Future Amortized Intangible Expense by Purchased Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Acquired Indefinite-lived Intangible Assets [Line Items]
2017	$ 8,272
2018	8,272
2019	8,272
2020	3,923
2021	492
Total future amortization expense	29,231	$ 4,097
Operating expense [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
2017	3,092
2018	3,092
2019	3,092
2020	2,972
2021	492
Total future amortization expense	12,740
Cost of Sales [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
2017	5,180
2018	5,180
2019	5,180
2020	951
2021	0
Total future amortization expense	$ 16,491