Summary of Significant Accounting Policies Restructuring (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 29, 2012 2012 Restructuring Plan [Member]	Dec. 31, 2011 2011 Restructuring Plan [Member]	Dec. 25, 2010 2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Increase (Decrease) in Restructuring Reserve	$ 2,917	$ 522	$ 15,900

The increase (decrease) during the period in the carrying amount (including both current and noncurrent portions of the accrual) of the liability pertaining to the exit from or disposal of business activities or restructuring pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination and to asset retirement obligations.

No definition available.

Name:	us-gaap_IncreaseDecreaseInRestructuringReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration