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Acquisitions - Purchase Price Allocation (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Oct. 04, 2013
Radial Assist
Oct. 04, 2013
Datascope
Oct. 04, 2013
Developed technology
Radial Assist
Oct. 04, 2013
Developed technology
Datascope
Oct. 04, 2013
Customer lists
Radial Assist
Oct. 04, 2013
Customer lists
Datascope
Oct. 04, 2013
Trademarks
Radial Assist
Oct. 04, 2013
Trademarks
Datascope
Business Acquisition [Line Items]                    
Inventories     $ 16 $ 478            
Intangibles         1,520 18,200 20 390 40 320
Goodwill 184,505 184,505 904 8,112            
Total assets acquired     $ 2,500 $ 27,500