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Dividend (Detail) (USD $)
3 Months Ended 12 Months Ended
Mar. 01, 2015
Nov. 30, 2014
Nov. 24, 2013
Nov. 25, 2012
Dividends [Line Items]        
Cash dividend declared $ 50,000,000ck0000094845_Dividenddeclared      
Cash dividend paid   30,003,000us-gaap_PaymentsOfDividends 25,076,000us-gaap_PaymentsOfDividends 20,036,000us-gaap_PaymentsOfDividends
Subsequent event [Member]        
Dividends [Line Items]        
Cash dividend declared $ 50,000,000ck0000094845_Dividenddeclared
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember