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Contingencies - Additional Information (Detail)
$ in Millions
3 Months Ended
Sep. 19, 2013
USD ($)
Nov. 09, 2009
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2017
USD ($)
Loss Contingencies [Line Items]        
Payments Received From Supplier       $ 121.0
Loss Contingency Accrual       1,600.0
Qualified Settlement Funds       111.0
Loss Contingency, Receivable       $ 275.0
RTI Technologies        
Loss Contingencies [Line Items]        
Damages awarded $ 113.5 $ 5.0    
Loss Contingency Accrual, Period Increase (Decrease)     $ (336.0)  
FilterProductClaims [Member]        
Loss Contingencies [Line Items]        
Loss Contingency, Pending Claims, Number       3,480
HerniaProductClaims [Member]        
Loss Contingencies [Line Items]        
Loss Contingency, Pending Claims, Number       650
WomensHealthProductClaims [Member]        
Loss Contingencies [Line Items]        
Loss Contingency, Pending Claims, Number       3,500
Claims Lacking Sufficient Information       1,090
Number Of Claims In Settlement Agreement       13,050
United States | HerniaProductClaims [Member]        
Loss Contingencies [Line Items]        
Loss Contingency, Pending Claims, Number       1