Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 04, 2013
Business Acquisition [Line Items]
Goodwill	$ 184,472	$ 184,464	$ 184,505
Datascope
Business Acquisition [Line Items]
Inventories				$ 478
Goodwill				8,112
Total assets acquired				27,500
Radial Assist
Business Acquisition [Line Items]
Inventories				16
Goodwill				904
Total assets acquired				2,500
Developed technology | Datascope
Business Acquisition [Line Items]
Intangibles				18,200
Developed technology | Radial Assist
Business Acquisition [Line Items]
Intangibles				1,520
Customer lists | Datascope
Business Acquisition [Line Items]
Intangibles				390
Customer lists | Radial Assist
Business Acquisition [Line Items]
Intangibles				20
Trademarks | Datascope
Business Acquisition [Line Items]
Intangibles				320
Trademarks | Radial Assist
Business Acquisition [Line Items]
Intangibles				$ 40