Earnings Per Share (Tables)

9 Months Ended

Sep. 25, 2012

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

The following table sets forth the computation of basic and diluted earnings per share (in thousands, except for per share data):

	For the 13 Weeks Ended				For the 39 Weeks Ended
	September 25, 2012		September 27, 2011		September 25, 2012		September 27, 2011
Amounts used for basic and diluted per share calculations:
Net income	$	36,515	$	28,848	$	121,836	$	97,332
Weighted average number of shares outstanding — basic	29,242		29,548		29,209		29,756
Effect of dilutive stock-based employee compensation awards	213		281		253		311
Weighted average number of shares outstanding — diluted	29,455		29,829		29,462		30,067
Earnings per common share:
Basic	$	1.25	$	0.98	$	4.17	$	3.27
Diluted	$	1.24	$	0.97	$	4.14	$	3.24