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Pension and other postretirement benefits - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Accumulated benefit obligations for plans with accumulated benefit obligations and projected benefit obligations in excess of plan assets $ 262.6 $ 262.6 $ 345.5  
Projected benefit obligations for plans with accumulated benefit obligations and projected benefit obligations in excess of plan assets 263.2 263.2 346.0  
Fair value of plan assets for plans with accumulated benefit obligations and projected benefit obligations in excess of plan assets $ 272.3 272.3 345.7  
Defined contribution plans, costs   $ 26.1 $ 24.3 $ 23.2
Fixed Income Securities        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Target allocation percentage of securities 100.00% 100.00%    
Pension        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Discount rate 4.70% 4.70% 5.10%  
Rate of return   7.30% 5.60% 6.70%
Accumulated benefit obligation $ 274.9 $ 274.9 $ 356.3  
Expected employer contribution next fiscal year 1.4 1.4    
Pension | Teleflex Incorporated Retirement Income Plan        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Payment for settlement 45.2      
AOCI before tax, attributable to parent $ 150.5 $ 150.5    
Postretirement Health Care Plans        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Discount rate 5.00% 5.00% 5.10%  
Expected employer contribution next fiscal year $ 1.4 $ 1.4    
Foreign Plan | Pension        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Plan assets with accumulated benefit obligation in excess of plan assets $ 1.0 $ 1.0 $ 0.8  
UNITED STATES | Pension        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Discount rate 4.81% 4.81%    
Rate of return   4.81% 7.40%  
UNITED STATES | Postretirement Health Care Plans        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Discount rate 4.97% 4.97%