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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2013
COMMITMENTS AND CONTINGENCIES [Abstract]      
Total rent expense $ 5.6us-gaap_LeaseAndRentalExpense $ 5.8us-gaap_LeaseAndRentalExpense $ 6.0us-gaap_LeaseAndRentalExpense
Future minimum rental payments under non-cancelable operating lease [Abstract]      
2016 5.5us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent    
2017 4.4us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears    
2018 3.4us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears    
2019 2.6us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears    
2020 1.2us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears    
Thereafter 0.6us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter    
Total future minimum payments due 17.7us-gaap_OperatingLeasesFutureMinimumPaymentsDue    
Other non-cancelable contractual obligations $ 8.7us-gaap_ContractualObligation