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Commitments and Contingencies (Details) £ in Millions, $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2016 USD ($) | Jan. 02, 2016 USD ($) | Dec. 31, 2016 USD ($) | Jan. 02, 2016 USD ($) | Jul. 02, 2016 USD ($) | Jul. 02, 2016 GBP (£)
Loss Contingencies [Line Items] |  |  |  |  |  |
Guarantee liabilities | $ 0.0 |  | $ 0.0 |  | $ 0.0 |
Product Warranties |  |  |  |  |  |
Warranty Term for most products |  |  | 3 years |  |  |
Changes in warranty reserve |  |  |  |  |  |
Balance as of beginning of period | 5.2 | $ 4.0 | $ 4.9 | $ 3.7 |  |
Provision for warranty | 1.6 | 0.8 | 3.2 | 1.7 |  |
Utilization of reserve | (0.9) | (0.7) | (2.0) | (1.5) |  |
Adjustments related to pre-existing warranties (including changes in estimates) | (0.6) | 0.2 | (0.8) | 0.4 |  |
Balance as of end of period | $ 5.3 | $ 4.3 | $ 5.3 | $ 4.3 |  |
Judicial ruling | Case related to amendment of pension for foreign subsidiary |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss contingency accrual | £ |  |  |  |  |  | £ 5.7

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