Income Taxes (Details) (USD $)	3 Months Ended	6 Months Ended	9 Months Ended
Sep. 27, 2014	Sep. 28, 2013	Jun. 28, 2014	Jun. 29, 2013	Sep. 27, 2014	Sep. 28, 2013
Income Taxes [Abstract]
Provision for income taxes	$ 3,087,000	$ 4,613,000			$ 9,405,000	$ 13,379,000
Effective tax rate	36.00%	334.00%			131.00%	(419.00%)
Federal statutory rate	35.00%	35.00%	35.00%	35.00%
Unrecognized tax benefits	$ 40,000,000				$ 40,000,000

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

-Publisher FASB

-Name Accounting Standards Codification

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

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Amount 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

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-Glossary Income Tax Expense (or Benefit)

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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