Operating (Gains), Losses and Other Charges, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2015		Dec. 31, 2014		Dec. 25, 2013
Other Income and Expenses [Abstract]
Gains on sales of assets and other, net	$ (93)		$ (112)		$ (66)
Restructuring charges and exit costs	1,524		981		1,389
Impairment charges	935		401		5,748
Operating (gains), losses and other charges, net	2,366		1,270		7,071
Restructuring charges and exit costs [Abstract]
Exit costs	697	[1]	335	[1]	630
Severance and other restructuring charges	827		646		759
Total restructuring charges and exit costs	1,524		981		1,389
Components of change in accrued exit cost liabilities [Roll Forward]
Balance, beginning of year	2,142		3,149
Exit costs	697	[1]	335	[1]	630
Payments, net of sublease receipts	(932)		(1,426)
Reclassification of certain lease liabilities, net	0		(95)
Interest accretion	136		179
Balance, end of year	2,043		2,142		3,149
Less current portion included in other current liabilities	550		483
Long-term portion included in other noncurrent liabilities	1,493		1,659
Estimated net cash payments related to exit cost liabilities [Abstract]
2016	680
2017	397
2018	353
2019	276
2020	194
Thereafter	631
Total	2,531
Less imputed interest	488
Present value of exit cost liabilities	2,043
Existing sublease arrangements	2,200
Properties expected to enter into sublease arrangements in the future	1,100
Impairment charges	$ 935		$ 401		5,748
Impairment of assets held and used					4,800
Impairment of assets identified as assets held for sale					$ 800

[1] Included as a component of operating (gains), losses and other charges, net.