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LONG-TERM DEBT AND INTEREST RATE SWAPS (Detail) - Schedule of Maturities of Long-term Debt (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013
2014	$ 15,623
2015	52,596
2016	5,712
2017	32,998
	$ 106,929

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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