Other Comprehensive Income Changes in accumulated other comprehensive income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Mar. 29, 2014
Accumulated Other Comprehensive Income/(Loss) [Line Items]
Currency Translation Adjustment	$ (15,791)	$ 1,574
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(31,431)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(15,206)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	114	57
Reclassification from accumulated other comprehensive income, current period, net of tax	(943)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(16,149)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(47,580)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income/(Loss) [Line Items]
Currency Translation Adjustment	(15,791)
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(24,655)
Reclassification from accumulated other comprehensive income, current period, net of tax	0
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(15,791)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(40,446)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(6,540)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(114)
Reclassification from accumulated other comprehensive income, current period, net of tax	0
Other Comprehensive Income (Loss), before Reclassifications, before Tax	114
Accumulated Other Comprehensive Income (Loss), Net of Tax	(6,426)
Interest Rate Swap [Member] \| Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(236)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	471
Reclassification from accumulated other comprehensive income, current period, net of tax	(943)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	(472)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (708)

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 14A

-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

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-Name Accounting Standards Codification

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-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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Amount before tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-SubTopic 10

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-Paragraph 10A

-Subparagraph (a)

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-Topic 830

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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