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Income Taxes Income Tax Disclosures (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013	Jun. 29, 2012
Income Taxes Disclosure [Line Items]
Effective tax rate (ETR)	35.60%	36.80%	34.40%	38.00%
Non-taxable life insurance proceeds	$ 0	$ 423	$ 0	$ 423
Minimum
Income Taxes Disclosure [Line Items]
Effective tax rate (ETR)	38.00%
Maximum
Income Taxes Disclosure [Line Items]
Effective tax rate (ETR)	40.00%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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