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Severance and Other Restructuring Costs - Change in Severance Liability (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended |
|---|---|---|
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Oct. 31, 2014
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Oct. 31, 2014
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| Restructuring and Related Activities [Abstract] | ||
| Accrual balance at the beginning of the period | $ 213 | $ 229 |
| Severance charges accrued | 1,186 | 1,878 |
| Severance costs paid | (185) | (893) |
| Accrual balance as of October 31, 2014 | $ 1,214 | $ 1,214 |
| X | ||||||||||
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- Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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