Supplemental Cash Flow Information Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 27, 2011

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	For the fiscal year ended
	December 27, 2011		December 28, 2010		December 29, 2009
Cash paid during the year for (in thousands):
Interest	$	390	$	379	$	380
Income taxes	80,572		68,263		26,947
Non-cash investing and financing activities (in thousands):
Accrued property and equipment purchases	$	19,116	$	13,057	$	6,108
Accrued purchase price of noncontrolling interest	—		764		2,264
Accrued purchase price of New Jersey acquisition	—		2,755		—
Accrued purchase price of Milwaukee acquisition	2,055		—		—
Accrued purchase price of Indiana acquisition	510		—		—
Canadian note receivable	—		3,333		—
Investment in municipal industrial revenue bonds	1,673		1,517		—