Pension and Other Postretirement Plans (Fair Value of Pension Plans Assets) (Details) (USD $) In Thousands, unless otherwise specified	Nov. 29, 2014	Nov. 30, 2013
Fair Value Disclosures [Abstract]
Total	$ 171,991	$ 156,384
Other items to reconcile to fair value of plan assets	289	0
Fair value of plan assets	172,280	156,384
Level 1 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	171,991	156,384
Level 2 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Level 3 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
U.S. equity securities funds [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	47,181	55,129
U.S. equity securities funds [Member] | Level 1 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	47,181	55,129
U.S. equity securities funds [Member] | Level 2 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
U.S. equity securities funds [Member] | Level 3 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Non-U.S. equity securities funds [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	21,546	24,587
Non-U.S. equity securities funds [Member] | Level 1 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	21,546	24,587
Non-U.S. equity securities funds [Member] | Level 2 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Non-U.S. equity securities funds [Member] | Level 3 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Fixed income securities funds [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	102,561	76,121
Fixed income securities funds [Member] | Level 1 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	102,561	76,121
Fixed income securities funds [Member] | Level 2 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Fixed income securities funds [Member] | Level 3 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Cash and equivalents [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	703	547
Cash and equivalents [Member] | Level 1 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	703	547
Cash and equivalents [Member] | Level 2 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	0	0
Cash and equivalents [Member] | Level 3 [Member]
Fair Value Disclosures [Abstract]
Fair value of plan assets	$ 0	$ 0