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Long-Term Debt - Summary of Long-Term Debt (Details) - USD ($) $ in Thousands	Oct. 31, 2015	Jan. 31, 2015
Debt Disclosure [Abstract]
Term loan	$ 158,400	$ 159,600
Less discount	(1,354)	(1,554)
Long-term debt	157,046	158,046
Less current portion, net of discount	(1,333)	(1,333)
Long-term debt, net of discount and current portion	$ 155,713	$ 156,713

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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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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