Income Taxes - Unrecognized Tax Benefits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 46,058us-gaap_UnrecognizedTaxBenefits	$ 45,308us-gaap_UnrecognizedTaxBenefits	$ 47,971us-gaap_UnrecognizedTaxBenefits
Gross additions to tax positions taken during the current year	2,116	2,249	5,241
Gross additions to tax positions taken during the prior year	0	127	258
Gross reductions to tax positions taken during the prior year	(12,109)	(833)	(922)
Reductions from settlements with taxing authorities	(7,114)	0	0
Reductions from lapse of applicable statutes of limitations	(12,627)	(793)	(7,240)
Balance at end of year	$ 16,324us-gaap_UnrecognizedTaxBenefits	$ 46,058us-gaap_UnrecognizedTaxBenefits	$ 45,308us-gaap_UnrecognizedTaxBenefits

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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