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Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
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Jul. 31, 2018
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract] |
Schedule of Components of Accumulated Other Comprehensive Income | The components of accumulated other comprehensive income consisted of the following (in thousands):
|  | Currency Translation Adjustments |  |  | Available-for-sale securities |  |  | Hedging Contracts |  |  | Total |
Balance, January 31, 2018 |  | $ | 100,190 |  |  | $ | 191 |  |  | $ | (38 | ) |  | $ | 100,343 |
Other comprehensive (loss) / income before reclassifications |  |  | (19,901 | ) |  |  | 64 |  |  |  | (380 | ) |  | $ | (20,217 | )
Amounts reclassified from accumulated other comprehensive income (1) |  |  |  |  |  |  |  |  |  |  | 276 |  |  | $ | 276 |
Net current-period other comprehensive (loss) / income |  |  | (19,901 | ) |  |  | 64 |  |  |  | (104 | ) |  |  | (19,941 | )
Balance, July 31, 2018 |  | $ | 80,289 |  |  | $ | 255 |  |  | $ | (142 | ) |  | $ | 80,402 |
|  | Currency Translation Adjustments |  |  | Available-for-sale securities |  |  | Hedging Contracts |  |  | Total |
Balance, January 31, 2017 |  | $ | 76,569 |  |  | $ | 197 |  |  | $ | 14 |  |  | $ | 76,780 |
Other comprehensive income before reclassifications |  |  | 9,108 |  |  |  | 1 |  |  |  | 31 |  |  | $ | 9,140 |
Amounts reclassified from accumulated other comprehensive income (1) |  |  | — |  |  |  | — |  |  |  | (442 | ) |  | $ | (442 | )
Net current-period other comprehensive income |  |  | 9,108 |  |  |  | 1 |  |  |  | (411 | ) |  |  | 8,698 |
Balance, July 31, 2017 |  | $ | 85,677 |  |  | $ | 198 |  |  | $ | (397 | ) |  | $ | 85,478 |
(1) | Amounts 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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