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Fair Value - Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 26, 2015 | Sep. 27, 2014
Fair Value Disclosures [Abstract] |  |
Percentage of voting interests acquired | 75.00% |
Remaining ownership percentage available | 25.00% |
Total gains or losses (realized/unrealized): |  |
Discount rate | 18.00% |
Level 3 | Redeemable Noncontrolling Interest |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | $ 28,419 | $ 20,581
Additions | 0 | 0
Total gains or losses (realized/unrealized): |  |
Net income attributable to noncontrolling interest | 614 | 523
Foreign currency translation | (693) | (113)
Change in fair value, included in additional paid-in capital | (893) | 3,559
Ending balance | $ 27,447 | $ 24,550

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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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