CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock	Capital in Excess of Par value of Common Stock	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance at Sep. 27, 2009	$ 676,351	$ 16,282	$ 512,862	$ 146,675	$ 532
Beginning Balance (in shares) at Sep. 27, 2009		81,413
Proceeds from exercise of stock options (in shares)		464
Proceeds from exercise of stock options	4,807	93	4,714
Grants and cancellations of restricted share awards (in shares)		1,363
Grants and cancellations of restricted share awards		273	(273)
Issuance of stock awards related to acquisition	161		161
Tax benefit - stock-based compensation	730		730
Stock-based compensation	25,434		25,434
Translation adjustment	(78)				(78)
Unrealized actuarial loss on pension benefits	0
Net income (loss)	59,038			59,038
Ending Balance at Oct. 03, 2010	766,443	16,648	543,628	205,713	454
Ending Balance (in shares) at Oct. 03, 2010		83,240
Proceeds from exercise of stock options (in shares)		2,089
Proceeds from exercise of stock options	27,208	418	26,790
Tax withholding on restricted stock units	1,538		1,538
Grants and cancellations of restricted share awards (in shares)		1,477
Grants and cancellations of restricted share awards		295	(295)
Issuance of stock awards related to acquisition	15,293		15,293
Stock-based compensation	28,639		28,639
Translation adjustment	332				332
Unrealized actuarial loss on pension benefits	0
Net income (loss)	55,730			55,730
Ending Balance at Oct. 02, 2011	892,107	17,361	612,517	261,443	786
Ending Balance (in shares) at Oct. 02, 2011		86,806
Proceeds from exercise of stock options (in shares)		1,902
Proceeds from exercise of stock options	31,211	380	30,831
Tax withholding on restricted stock units	(808)		(808)
Grants and cancellations of restricted share awards (in shares)		1,574
Grants and cancellations of restricted share awards		315	(315)
Stock-based compensation	36,680		36,680
Translation adjustment	(373)				(373)
Unrealized actuarial loss on pension benefits	(1,156)				(1,156)
Net income (loss)	(29,675)			(29,675)
Ending Balance at Sep. 30, 2012	$ 927,986	$ 18,056	$ 678,905	$ 231,768	$ (743)
Ending Balance (in shares) at Sep. 30, 2012		90,282