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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Oct. 01, 2017 | Sep. 30, 2018 | Oct. 01, 2017
Operating Loss Carryforwards [Line Items] |  |  |  |
Income tax (benefit) expense | $ 32,304 | $ (11,133) | $ 46,063 | $ (6,673)
Effective tax rate | 27.30% | 109.30% | 28.20% | (12.00%)
Recognition of unrecognized tax benefit resulting from prior uncertain tax positions |  |  | $ 1,200 |
Income tax expense related to debt refinance |  |  | 1,800 |
Tax Cuts and Jobs Act of 2017, income tax expense | $ 3,800 |  | 4,300 |
Income tax benefit from implementing a foreign tax credit planning strategy | $ 3,300 | $ 2,500 | $ 4,400 | $ 8,400
Foreign tax expense recognized |  | 1,400 |  | $ 8,400
Federal statutory income tax rate (as a percent) |  |  |  | 35.00%
Income tax benefit from non-taxable currency translation gains |  | 6,400 |  | $ 11,700
Effective rate impact, other |  | $ 2,600 |  | $ 2,300
GERMANY |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Federal statutory income tax rate (as a percent) |  |  |  | 28.00%
CANADA |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Federal statutory income tax rate (as a percent) |  |  |  | 26.00%
NETHERLANDS |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Federal statutory income tax rate (as a percent) |  |  |  | 25.00%

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- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: 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)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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