Summary of Significant Accounting Policies effects on revision cf (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 30, 2012	Mar. 31, 2012
Net Cash Provided by (Used in) Operating Activities	$ 10,418	$ 7,381	$ 7,381
Net Cash Provided by (Used in) Financing Activities	15,423	14,291	14,291
Cash and Cash Equivalents, Period Increase (Decrease)	22,359	(16,314)	(16,314)
Scenario, Previously Reported [Member]
Net Cash Provided by (Used in) Operating Activities		15,424
Net Cash Provided by (Used in) Financing Activities		6,248
Cash and Cash Equivalents, Period Increase (Decrease)		(16,314)
Scenario, Adjustment [Member]
Net Cash Provided by (Used in) Operating Activities		(8,043)
Net Cash Provided by (Used in) Financing Activities		8,043
Cash and Cash Equivalents, Period Increase (Decrease)		$ 0

Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.

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