Fair Value Measurements (Fair Value Measurements) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Dec. 29, 2010	Nov. 29, 2014	Nov. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		$ 893	$ 1,024
Mutual fund investments - equities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		437	593
Mutual fund investments - bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		442	400
Cash and equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		14	31
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		893	1,024
Level 1 [Member] | Mutual fund investments - equities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		437	593
Level 1 [Member] | Mutual fund investments - bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		442	400
Level 1 [Member] | Cash and equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		14	31
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 2 [Member] | Mutual fund investments - equities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 2 [Member] | Mutual fund investments - bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 2 [Member] | Cash and equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 3 [Member] | Mutual fund investments - equities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 3 [Member] | Mutual fund investments - bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
Level 3 [Member] | Cash and equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted trust, included in Other noncurrent assets		0	0
TransWeb [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		0	0
Fair value of earn-out payment	1,018
Prepaid Expenses and Other Current Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		362
Prepaid Expenses and Other Current Assets [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		0
Prepaid Expenses and Other Current Assets [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		362
Prepaid Expenses and Other Current Assets [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		0
Accrued Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		367
Accrued Liabilities [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts, included in Prepaid expenses and other current assets		$ 367