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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Jan. 31, 2017
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Schedule of Components of Accumulated Other Comprehensive Income | The components of accumulated other comprehensive income at January 31, consisted of the following (in thousands):
| Currency Translation Adjustments |  |  | Available- for-sale securities |  |  | Hedging Contracts |  |  | Total |
Balance, January 31, 2016 | $ | 68,265 |  |  | $ | 189 |  |  | $ | 51 |  |  | $ | 68,505 |
Other comprehensive income / (loss) before reclassifications |  | 8,389 |  |  |  | 8 |  |  |  | (408 | ) |  |  | 7,989 |
Amounts reclassified from accumulated other comprehensive income (1) |  | (85 | ) |  |  | — |  |  |  | 371 |  |  |  | 286 |
Net current-period other comprehensive income / (loss) |  | 8,304 |  |  |  | 8 |  |  |  | (37 | ) |  |  | 8,275 |
Balance, January 31, 2017 | $ | 76,569 |  |  | $ | 197 |  |  | $ | 14 |  |  | $ | 76,780 |
| Currency Translation Adjustments |  |  | Available- for-sale securities |  |  | Hedging Contracts |  |  | Total |
Balance, January 31, 2015 | $ | 98,642 |  |  | $ | 211 |  |  | $ | 1 |  |  | $ | 98,854 |
Other comprehensive (loss) / income before reclassifications |  | (30,377 | ) |  |  | (22 | ) |  |  | 50 |  |  |  | (30,349 | )
Amounts reclassified from accumulated other comprehensive income (1) |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net current-period other comprehensive (loss) / income |  | (30,377 | ) |  |  | (22 | ) |  |  | 50 |  |  |  | (30,349 | )
Balance, January 31, 2016 | $ | 68,265 |  |  | $ | 189 |  |  | $ | 51 |  |  | $ | 68,505 |
(1) | Amounts in fiscal 2017 and 2016 were reclassified to earnings in the Consolidated Statements of Operations.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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