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Contingencies - Additional Information (Detail)
$ in Millions
1 Months Ended 6 Months Ended
Sep. 19, 2013
USD ($)
Nov. 09, 2009
USD ($)
Apr. 30, 2018
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2018
USD ($)
Loss Contingencies [Line Items]          
Payments Received From Supplier         $ 121.0
Loss Contingency Accrual         1,800.0
Qualified Settlement Funds         165.0
Loss Contingency, Receivable         $ 303.0
RTI Technologies          
Loss Contingencies [Line Items]          
Damages awarded $ 113.5 $ 5.0      
Loss Contingency Accrual, Period Increase (Decrease)       $ (336.0)  
HerniaProductClaims [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Pending Claims, Number         1,280
WomensHealthProductClaims [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Pending Claims, Number         3,195
Claims Lacking Sufficient Information         1,080
Number Of Claims In Settlement Agreement         13,658
FilterProductClaims [Member]          
Loss Contingencies [Line Items]          
Loss Contingency, Pending Claims, Number         3,789
Subsequent Event | WomensHealthProductClaims [Member]          
Loss Contingencies [Line Items]          
Damages awarded     $ 68.0    
Subsequent Event | Compensatory [Member] | WomensHealthProductClaims [Member]          
Loss Contingencies [Line Items]          
Damages awarded     33.0    
Subsequent Event | Punitive [Member] | WomensHealthProductClaims [Member]          
Loss Contingencies [Line Items]          
Damages awarded     $ 35.0