Consolidated Statements Of Shareholder's Equity And Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity at Period Start at Oct. 01, 2011	$ 558,882	$ 483	$ 415,556	$ (400,110)	$ 534,824	$ 8,129
Common Stock, Shares, Outstanding at Period Start at Oct. 01, 2011		34,544,000
Comprehensive income:
Net Income (Loss) Attributable to Parent	62,089				62,089
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	1,234
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	8,055
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	6,821
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	70,144
Stock-based compensation expense	12,535		12,535
Exercise of stock options, including tax benefits, shares		553,000
Exercise of stock options, including tax benefits, value	7,461	6	7,455
Stockholders' Equity at Period End at Sep. 29, 2012	649,022	489	435,546	(400,110)	596,913	16,184
Common Stock, Shares, Outstanding at Period End at Sep. 29, 2012		35,097,000
Comprehensive income:
Net Income (Loss) Attributable to Parent	82,259				82,259
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	6,754
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	4,053
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(2,701)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	86,312
Treasury shares purchased, value	(49,858)			(49,858)
Treasury shares purchased, shares		(1,822,000)
Stock-based compensation expense	11,782		11,782
Exercise of stock options, including tax benefits, shares		325,000
Exercise of stock options, including tax benefits, value	2,043	3	2,040
Stockholders' Equity at Period End at Sep. 28, 2013	699,301	492	449,368	(449,968)	679,172	20,237
Common Stock, Shares, Outstanding at Period End at Sep. 28, 2013	33,600,000	33,600,000
Comprehensive income:
Net Income (Loss) Attributable to Parent	87,213				87,213
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(3,220)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(1,655)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	1,565
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	85,558
Treasury shares purchased, value	(30,000)			(30,000)
Treasury shares purchased, shares		(733,000)
Stock-based compensation expense	12,970		12,970
Exercise of stock options, including tax benefits, shares		786,000
Exercise of stock options, including tax benefits, value	13,304	8	13,296
Stockholders' Equity at Period End at Sep. 27, 2014	$ 781,133	$ 500	$ 475,634	$ (479,968)	$ 766,385	$ 18,582
Common Stock, Shares, Outstanding at Period End at Sep. 27, 2014	33,653,000	33,653,000