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Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Accumulated other comprehensive income (loss) | The following summarizes changes in accumulated other comprehensive income (loss):
|  | Three Months Ended December 31, 2017 |  |  | Three Months Ended December 31, 2016 |
|  | Unrealized Gain on Short-Term Investments |  |  | Foreign Currency Translation |  |  | Total |  |  | Unrealized Gain on Short-Term Investments |  |  | Foreign Currency Translation |  |  | Total |
Balance at beginning of period |  | $ | 644,000 |  |  | $ | (7,132,000 | ) |  | $ | (6,488,000 | ) |  | $ | 420,000 |  |  | $ | (6,526,000 | ) |  | $ | (6,106,000 | )
Other comprehensive income (loss), net of tax |  |  | 83,000 |  |  |  | 247,000 |  |  |  | 330,000 |  |  |  | 10,000 |  |  |  | (1,252,000 | ) |  |  | (1,242,000 | )
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Balance at end of period |  | $ | 727,000 |  |  | $ | (6,885,000 | ) |  | $ | (6,158,000 | ) |  | $ | 430,000 |  |  | $ | (7,778,000 | ) |  | $ | (7,348,000 | )
|  | Nine Months Ended December 31, 2017 |  |  | Nine Months Ended December 31, 2016 |
|  | Unrealized Gain on Short-Term Investments |  |  | Foreign Currency Translation |  |  | Total |  |  | Unrealized Gain (Loss) on Short-Term Investments |  |  | Foreign Currency Translation |  |  | Total |
Balance at beginning of period |  | $ | 528,000 |  |  | $ | (7,969,000 | ) |  | $ | (7,441,000 | ) |  | $ | 332,000 |  |  | $ | (5,184,000 | ) |  | $ | (4,852,000 | )
Other comprehensive income (loss), net of tax |  |  | 199,000 |  |  |  | 1,084,000 |  |  |  | 1,283,000 |  |  |  | 98,000 |  |  |  | (2,594,000 | ) |  |  | (2,496,000 | )
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Balance at end of period |  | $ | 727,000 |  |  | $ | (6,885,000 | ) |  | $ | (6,158,000 | ) |  | $ | 430,000 |  |  | $ | (7,778,000 | ) |  | $ | (7,348,000 | )

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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=84228862&loc=SL7669686-108580 + Details
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