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Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 02, 2017 | Jul. 03, 2016 | Jul. 02, 2017 | Jul. 03, 2016 | Dec. 31, 2016
Income Taxes [Line Items] |  |  |  |  |
Effective tax rate | 15.40% | 3.20% | 12.90% | 0.00% |
U.S. statutory federal tax rate | 35.00% | 35.00% | 35.00% | 35.00% |
Discrete tax expense (benefits) | $ 0.5 | $ (4.4) | $ (6.5) | $ (6.9) |
Gains (loss) on non-taxable foreign exchange | 0.7 | (2.2) | 0.3 | (3.4) |
Discrete tax expense, actuarial gains | 1.0 |  | 1.0 |  |
Discrete tax benefits, stock based compensation | (1.0) |  | (6.5) |  |
Discrete tax benefits, U.S. research and development tax credits |  |  | 0.7 |  |
Discrete tax benefits, Other |  | 0.4 |  |  |
Discrete tax benefits, marketable securities |  |  |  | 0.9 |
Tax reserve releases resulting from the settlement of a U.S. tax audit |  | $ 2.6 |  | 2.6 |
Uncertain tax positions | 42.5 |  | 42.5 |  | $ 39.0
Net Increase in uncertain tax positions |  |  | 3.5 |  |
Decrease in uncertain tax position resulting from expiration of statutes of limitations |  |  | 0.8 |  |
Accrued interest and penalties | $ 0.4 |  | 0.4 |  | $ 0.4
Interest and penalties related to income tax, expense (benefit) |  |  | 0.1 | 0.3 |
Tax savings due to the tax holiday |  |  | $ 15.1 | $ 30.7 |
Tax savings due to the tax holiday, per share |  |  | $ 0.07 | $ 0.15 |
Tax holiday expiration date |  |  | December 31, 2020 |  |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research and development tax credit. + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in other income tax contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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