v3.26.1
Derivatives and Hedging Transactions - Schedule of Gross Fair Values and Location of Derivative Instruments (Details) - USD ($)
$ in Thousands
Jun. 27, 2026
Dec. 31, 2025
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent    
Derivatives, Fair Value [Line Items]    
Other Assets $ 6,471 $ 129
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Other Assets 3,901 0
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent | Foreign exchange contracts    
Derivatives, Fair Value [Line Items]    
Other Assets 974 129
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent | Net investment hedge    
Derivatives, Fair Value [Line Items]    
Other Assets 1,596 0
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent    
Derivatives, Fair Value [Line Items]    
Other Assets 2,566 4,680
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Other Assets 2,566 4,680
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent | Foreign exchange contracts    
Derivatives, Fair Value [Line Items]    
Other Assets 0 0
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent | Net investment hedge    
Derivatives, Fair Value [Line Items]    
Other Assets 0 0
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent    
Derivatives, Fair Value [Line Items]    
Other Liabilities   180
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Other Liabilities   180
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent | Foreign exchange contracts    
Derivatives, Fair Value [Line Items]    
Other Liabilities   0
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent | Net investment hedge    
Derivatives, Fair Value [Line Items]    
Other Liabilities   0
Location, Statement of Financial Position, Balance [Axis]: hayw:AccruedLiabilitiesAndOtherLiabilitiesCurrent    
Derivatives, Fair Value [Line Items]    
Other Liabilities 190 1,006
Location, Statement of Financial Position, Balance [Axis]: hayw:AccruedLiabilitiesAndOtherLiabilitiesCurrent | Interest rate swaps    
Derivatives, Fair Value [Line Items]    
Other Liabilities 0 122
Location, Statement of Financial Position, Balance [Axis]: hayw:AccruedLiabilitiesAndOtherLiabilitiesCurrent | Foreign exchange contracts    
Derivatives, Fair Value [Line Items]    
Other Liabilities 190 884
Location, Statement of Financial Position, Balance [Axis]: hayw:AccruedLiabilitiesAndOtherLiabilitiesCurrent | Net investment hedge    
Derivatives, Fair Value [Line Items]    
Other Liabilities $ 0 $ 0