Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Mar. 02, 2013	Dec. 01, 2012
Assets
Marketable securities	$ 11,337	$ 15,499
Derivative assets	1,122	830
Interest rate swaps	8,535	9,473
Cash-flow hedges	1,528	1,610
Liabilities [Abstract]
Derivative liabilities	483	956
Contingent consideration liability, continuing operations	1,643	1,649
Contingent consideration liability, discontinued operations	5,000	5,000
Fair Value, Inputs, Level 1 [Member]
Assets
Marketable securities	11,337	15,499
Derivative assets	0	0
Interest rate swaps	0	0
Cash-flow hedges	0	0
Liabilities [Abstract]
Derivative liabilities	0	0
Contingent consideration liability, continuing operations	0	0
Contingent consideration liability, discontinued operations	0	0
Fair Value, Inputs, Level 2 [Member]
Assets
Marketable securities	0	0
Derivative assets	1,122	830
Interest rate swaps	8,535	9,473
Cash-flow hedges	1,528	1,610
Liabilities [Abstract]
Derivative liabilities	483	956
Contingent consideration liability, continuing operations	0	0
Contingent consideration liability, discontinued operations	0	0
Fair Value, Inputs, Level 3 [Member]
Assets
Marketable securities	0	0
Derivative assets
Interest rate swaps	0	0
Cash-flow hedges	0	0
Liabilities [Abstract]
Derivative liabilities	0	0
Contingent consideration liability, continuing operations	1,643	1,649
Contingent consideration liability, discontinued operations	$ 5,000	$ 5,000