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BENEFIT PLANS - Schedule of Pension Funds Contributions, Additional Information (Detail)
 12 Months Ended
Feb. 28, 2015
Minimum  
Defined Benefit Plan Disclosure [Line Items]  
Percentage representing PPA surcharges 5.00%svu_PercentageRepresentingPpaSurcharges
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= us-gaap_MinimumMember
Maximum  
Defined Benefit Plan Disclosure [Line Items]  
Percentage representing PPA surcharges 10.00%svu_PercentageRepresentingPpaSurcharges
/ us-gaap_RangeAxis
= us-gaap_MaximumMember