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Pension Plans And Other Retirement Benefits (Reconciliation Of Level 3 Plan Assets Measured At Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Common/Collective Trusts [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year $ 16,100 $ 19,817
Earned income, net of management expenses 517 (269)
Unrealized gain on investment 1,427 2,233
Purchases, sales, issuances and settlements, net (3,269) (5,681)
Fair value of plan assets at end of year 14,775 16,100
Limited Partnerships [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year 10,609 7,779
Earned income, net of management expenses 230 (416)
Unrealized gain on investment 2,291 2,896
Purchases, sales, issuances and settlements, net (1,088) 350
Fair value of plan assets at end of year $ 12,042 $ 10,609