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FINANCIAL INSTRUMENTS (Detail) (USD $) | 12 Months Ended
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Jan. 31, 2013 | Jan. 31, 2012 | Jan. 31, 2011
Derivative Liability, Notional Amount | $ 37,800,000 |  |
Derivative Financial Instruments, Liabilities, Fair Value Disclosure | 2,789,000 | 4,235,000 |
Gain (Loss) on Derivative Instruments, Net, Pretax | (370,000) | (1,148,000) | (2,116,000)
Payments for Interest Rate Swap Settlement | $ 1,816,000 | $ 2,436,000 | $ 2,477,000

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- Definition Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 15 -Paragraph 83 -URI http://asc.fasb.org/extlink&oid=6913464&loc=d3e34841-113949 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 10 -Subparagraph i -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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