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Contractual Obligations - Summary of Contractual Obligations (Detail) (USD $) In Thousands, unless otherwise specified | Jan. 31, 2014
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Commitments And Contingencies Disclosure [Abstract] |
Purchase Commitments, Total | $ 12,134
Purchase Commitments, 2015 | 11,027
Purchase Commitments, 2016 | 909
Purchase Commitments, 2017 | 198
Purchase Commitments, 2018 |
Purchase Commitments, 2019 and Thereafter |
Operating Lease Obligations, Total | 607
Operating Lease Obligations, 2015 | 311
Operating Lease Obligations, 2016 | 164
Operating Lease Obligations, 2017 | 80
Operating Lease Obligations, 2018 | 52
Operating Lease Obligations, 2019 and Thereafter |
Contractual Obligation, Total | 12,741
Contractual Obligation, 2015 | 11,338
Contractual Obligation, 2016 | 1,073
Contractual Obligation, 2017 | 278
Contractual Obligation, 2018 | 52
Contractual Obligation, 2019 and Thereafter |

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