Goodwill and Other Intangible Assets Schedule of Finite-Lived Intangible Assets, Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Amortization of Intangible Assets [Line Items]
Amortization of intangible assets	$ 5,090	$ 5,220	$ 10,190	$ 10,580
Cost of Sales [Member] | Technology and Other [Member]
Amortization of Intangible Assets [Line Items]
Amortization of intangible assets	1,390	1,480	2,770	3,080
Selling, General and Administrative Expenses [Member] | Customer Relationships [Member]
Amortization of Intangible Assets [Line Items]
Amortization of intangible assets	$ 3,700	$ 3,740	$ 7,420	$ 7,500