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Note O – Fair Value Measurements (Details) - Losses Recognized from Fair Value Measurements on Non-recurring Basis (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Dec. 02, 2014
Dec. 03, 2013
Dec. 02, 2014
Dec. 03, 2013
Included within continuing operations        
Asset impairment charges     $ 3,359us-gaap_AssetImpairmentCharges $ 17,746us-gaap_AssetImpairmentCharges
Continuing Operations [Member]        
Included within continuing operations        
Long-lived assets held for sale 203us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
315us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
802us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
584us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Long-lived assets held for use 1,013us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
12,003us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
1,470us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
16,664us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Asset impairment charges 1,216us-gaap_AssetImpairmentCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
12,318us-gaap_AssetImpairmentCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
2,272us-gaap_AssetImpairmentCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
17,248us-gaap_AssetImpairmentCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentContinuingOperationsMember
Discontinued Operations [Member]        
Included within continuing operations        
Asset impairment charges       $ 153us-gaap_AssetImpairmentCharges
/ us-gaap_StatementOperatingActivitiesSegmentAxis
= us-gaap_SegmentDiscontinuedOperationsMember