Selected Quarterly Financial Data (Unaudited) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information [Line Items]
Restructuring charges									$ 9,939	$ 21,671	$ 21,512
Debt Instrument, Financing Costs Expensed				$ 2,700					2,700
Loss on early extinguishment of debt				300					254	0	0
Proceeds from Sale of Buildings		$ 5,200							5,200
Gain on sale of facility									1,890	0	0
Cost of Sales [Member]
Quarterly Financial Information [Line Items]
Restructuring charges									7,612	8,016	5,612
Cost of Sales [Member] | Facility Consolidation Costs [Member]
Quarterly Financial Information [Line Items]
Restructuring charges	$ 2,100		$ 100	900	$ 2,800	$ 1,300	$ 1,500	$ 2,300	3,066	8,016	5,612
Cost of Sales [Member] | Termination of Product Offering [Member]
Quarterly Financial Information [Line Items]
Restructuring charges			4,500						4,546	0	0
Selling and Administrative Expenses [Member]
Quarterly Financial Information [Line Items]
Business and asset acquisition costs					2,100				20,599	2,543	722
Gain on sale of facility		(1,900)							1,890	0	0
Selling and Administrative Expenses [Member] | Administrative Restructuring [Member]
Quarterly Financial Information [Line Items]
Restructuring charges	2,800	400	1,000	2,800	$ 4,300	$ 1,100	$ 2,200	$ 6,200	6,873	13,655	3,354
Selling and Administrative Expenses [Member] | Executive Restructuring [Member]
Quarterly Financial Information [Line Items]
Restructuring charges									$ 0	$ 0	$ 12,546
SurgiQuestInc [Member] | Selling and Administrative Expenses [Member]
Quarterly Financial Information [Line Items]
Business and asset acquisition costs	$ 3,200	$ 3,300	$ 5,000	$ 9,000