Impairment Charges (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
Impairment Charges [Abstract]
Impairment of Long-Lived Assets Held-for-use	$ 0	$ 2,088
Impaired Long-Lived Assets Held and Used, Asset Description		The charge was a result of management determining that the net book value of four properties was impaired.