Income Taxes - Reconciliation of Total Amounts of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jan. 31, 2018 |
Jan. 31, 2017 |
|
| Income Tax Disclosure [Abstract] | ||
| Balance of gross unrecognized tax benefits, beginning of period | $ 5,093 | $ 5,151 |
| Gross amounts of increases in unrecognized tax benefits as a result of tax positions taken in the current period | 321 | |
| Decrease due to expiration of statute of limitation | (389) | (269) |
| Decrease for tax positions related to prior years | (96) | |
| Effect of currency translation | 152 | (14) |
| Balance of gross unrecognized tax benefits, end of period | $ 4,856 | $ 5,093 |
| X | ||||||||||
- Definition Unrecognized tax benefits increase (decrease) resulting from foreign currency translation. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|