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Acquisitions and Divestiture (Details) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Mar. 31, 2011
Dec. 31, 2011
Trade Names [Member]
Dec. 31, 2011
Technology Member
Dec. 31, 2011
Customer Relationships
Dec. 31, 2012
Purchase of Pharmacontrol Electronic GmbH [Member]
Dec. 31, 2011
Purchase of Pharmacontrol Electronic GmbH [Member]
Aug. 01, 2011
Purchase of Pharmacontrol Electronic GmbH [Member]
Dec. 31, 2011
Purchase of Smiths Detection PID
Mar. 31, 2011
U.S. Operations Segment
Mar. 31, 2011
Swiss Operations Segment
Business Acquisition [Line Items]                          
Payments to Acquire Businesses, Gross     $ 15,400,000           $ 19,400,000   $ 12,000,000    
Goodwill 455,842,000 452,351,000 447,743,000 4,400,000           10,900,000   1,900,000 2,500,000
Acquisition Contingent Consideration Payment 0 (325,000) (7,750,000)         (325,000)          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill       $ 9,900,000           $ 13,300,000      
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life         15 years 10 years 18 years