Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Significant Accounting Policies [Abstract]

Summary Of Activity In The Allowance For Doubtful Accounts

	Balance at Beginning of  Period		Charged to Costs and Expenses		Write-offs, Net of Recoveries			Balance at End of Period
For the Fiscal Year Ended December 31, 2011
Trade receivables	$	5,324	$	4,503	$	(3,236	)	$	6,591
Other receivables		7,499		3,293		(3,024	)		7,768
Other non-current receivables		312		8		(46	)		274
	$	13,135	$	7,804	$	(6,306	)	$	14,633
For the Fiscal Year Ended December 25, 2010
Trade receivables	$	5,547	$	1,395	$	(1,618	)	$	5,324
Other receivables		6,727		2,516		(1,744	)		7,499
Other non-current receivables		319		5		(12	)		312
	$	12,593	$	3,916	$	(3,374	)	$	13,135
For the Fiscal Year Ended December 26, 2009
Trade receivables	$	6,230	$	3,801	$	(4,484	)	$	5,547
Other receivables		4,866		4,182		(2,321	)		6,727
Other non-current receivables		316		3					319
	$	11,412	$	7,986	$	(6,805	)	$	12,593

Reconciliation Of The Average Number Of Common Shares Outstanding To Average Number Of Diluted Shares Outstanding

	Fiscal Year
	2011		2010		2009
Average number of common shares outstanding		47,444		49,523		51,095
Incremental shares from assumed exercises of stock options		80		57		185
Average number of common shares and common share equivalents outstanding		47,524		49,580		51,280