Fair Value Measurements And Financial Instruments (Tables)

9 Months Ended

12 Months Ended

Oct. 01, 2011

Oct. 02, 2010

Jan. 01, 2011

Fair Value Measurements And Financial Instruments [Abstract]

Components Of Available-For-Sale Securities

	October 1, 2011			January 1, 2011
Adjusted cost	$	9,327		$	9,116
Gross unrealized gains		29,342			24,988
Gross unrealized losses		(196	)		(359	)
Fair value	$	38,473		$	33,745

Financial Assets Measured At Fair Value On A Recurring Basis

	Balance Sheet Classification	October 1, 2011		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money-market securities	Cash and cash equivalents	$	727,331	$	727,331	$	—	$	—
Available-for-sale marketable securities	Other current assets		38,473		38,473		—		—
Trading marketable securities	Other assets		207,864		207,864		—		—
Interest rate swap	Other assets		17,906		—		17,906		—
Total assets		$	991,574	$	973,668	$	17,906	$	—

	Balance Sheet Classification	January 1, 2011		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money-market securities	Cash and cash equivalents	$	364,418	$	364,418	$	—	$	—
Trading marketable securities	Other assets		190,438		190,438		—		—
Available-for-sale marketable securities	Other current assets		33,745		33,745		—		—
Total assets		$	588,601	$	588,601	$	—	$	—
Liabilities
Interest rate swap	Other liabilities	$	10,046	$	—	$	10,046	$	—
Total liabilities		$	10,046	$	—	$	10,046	$	—

Schedule Of Nonfinancial Assets And Liabilities Measured At Fair Value In Conjunction With Business Combinations

	Fair Value		Quoted Prices In Active Markets (Level 1)			Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Description
Business Combination	$	52,238		$	—	$	52,238		$	—