Fair Value Measurements (Fair Value) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands	Aug. 28, 2011	Nov. 30, 2010
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Money market funds	$ 82,911	$ 169,621
Time deposits	84,064	46,050
Cash surrender value of insurance policies	23,113	27,541
Total assets	190,088	243,212
Liabilities
Derivative liabilities	6	16
Total liabilities	6	16
Fair Value, Inputs, Level 1 [Member]
Assets
Money market funds	82,911	169,621
Time deposits	0	0
Cash surrender value of insurance policies	0	0
Total assets	82,911	169,621
Liabilities
Derivative liabilities	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 2 [Member]
Assets
Money market funds	0	0
Time deposits	84,064	46,050
Cash surrender value of insurance policies	23,113	27,541
Total assets	107,177	73,591
Liabilities
Derivative liabilities	6	16
Total liabilities	6	16
Fair Value, Inputs, Level 3 [Member]
Assets
Money market funds	0	0
Time deposits	0	0
Cash surrender value of insurance policies	0	0
Total assets	0	0
Liabilities
Derivative liabilities	0	0
Total liabilities	$ 0	$ 0