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Commitments and contingent liabilities (Detail) ¥ in Millions, $ in Millions |  |  | 6 Months Ended
--- | --- | --- | ---
Mar. 24, 2017 USD ($) | Mar. 24, 2017 CNY (¥) | Dec. 05, 2014 USD ($) | Jul. 02, 2017 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Estimated litigation liability |  |  |  | $ 2.5
Minimum |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Estimated time fram over which accrued amounts may be paid out |  |  |  | 15 years
Maximum |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Estimated time fram over which accrued amounts may be paid out |  |  |  | 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 |  |  |  | 5.5
Discontinued Operations |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Estimated litigation liability |  |  |  | 1.7
Distributor vs Teleflex Medical Trading Company, Ltd. |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Damages sought | $ 7.5 | ¥ 51.2 |  |
Distributor vs Teleflex Medical Trading Company, Ltd. Repurchase of Inventory |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Damages sought | 14.4 | 97.5 |  |
Teleflex Medical Trading Company, Ltd. vs Distributor - Outstanding Receivables |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Damages sought | $ 9.0 | ¥ 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

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