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Commitments and contingent liabilities (Detail)
¥ in Millions, $ in Millions
3 Months Ended
Dec. 05, 2014
USD ($)
Apr. 02, 2017
USD ($)
Apr. 02, 2017
CNY (¥)
Loss Contingencies [Line Items]      
Estimated litigation liability   $ 2.4  
Minimum      
Loss Contingencies [Line Items]      
Estimated time fram over which accrued amounts may be paid out   15 years 15 years
Maximum      
Loss Contingencies [Line Items]      
Estimated time fram over which accrued amounts may be paid out   20 years 20 years
Accrued Liabilities      
Loss Contingencies [Line Items]      
Accrual for environmental loss contingencies   $ 1.1  
Other Liability      
Loss Contingencies [Line Items]      
Accrual for environmental loss contingencies   5.6  
Discontinued Operations      
Loss Contingencies [Line Items]      
Estimated litigation liability   1.7  
Distributor vs Teleflex Medical Trading Company, Ltd.      
Loss Contingencies [Line Items]      
Damages sought   10.1 ¥ 69.3
Distributor vs Teleflex Medical Trading Company, Ltd. Repurchase of Inventory      
Loss Contingencies [Line Items]      
Damages sought   9.1 63.0
Teleflex Medical Trading Company, Ltd. vs Distributor - Outstanding Receivables      
Loss Contingencies [Line Items]      
Damages sought   8.9 ¥ 61.2
Compensatory Damages | Judicial Ruling | Parish of Calcasieu      
Loss Contingencies [Line Items]      
Damages awarded $ 0.1    
Punitive Damages | Judicial Ruling | Parish of Calcasieu      
Loss Contingencies [Line Items]      
Damages awarded $ 23.0    
Unfavorable Regulatory Action | Judicial Ruling | Parish of Calcasieu | Maximum      
Loss Contingencies [Line Items]      
Estimate of possible loss   $ 10.0