Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data (Unaudited) [Abstract]

Schedule Of Quarterly Financial Data

	Quarter Ended
	March 26, 2011		June 25, 2011		September 24, 2011		December 31, 2011
	(In thousands, except per share amounts)
Net sales	$	413,185	$	350,223	$	306,731	$	282,711
Gross profit	$	208,278	$	176,310	$	147,907	$	132,230
Net income	$	96,358	$	64,733	$	51,082	$	38,506
Basic net income per share	$	1.07	$	0.81	$	0.74	$	0.57
Diluted net income per share	$	1.04	$	0.79	$	0.73	$	0.56
Shares used in basic per share calculations		90,321		80,068		68,883		66,973
Shares used in diluted per share calculations		92,855		82,074		70,379		69,032

	Quarter Ended
	March 27, 2010		June 26, 2010		September 25, 2010		December 31, 2010
	(In thousands, except per share amounts)
Net sales	$	276,229	$	321,369	$	367,203	$	384,357
Gross profit	$	133,967	$	156,938	$	180,429	$	194,000
Net income	$	41,256	$	63,308	$	76,265	$	81,503
Basic net income per share	$	0.43	$	0.67	$	0.83	$	0.91
Diluted net income per share	$	0.43	$	0.66	$	0.82	$	0.89
Shares used in basic per share calculations		96,000		94,065		91,512		89,576
Shares used in diluted per share calculations		96,672		95,332		92,859		91,934