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Shareholders' Equity (Tables) | 12 Months Ended
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Mar. 31, 2018
Stockholders' Equity Note [Abstract] |
Schedule of repurchased shares under share buyback program | A summary of the approved and active share buyback program is shown in the following table (in thousands, excluding transaction costs):
|  | Approved |  | Repurchased
Share Buyback Program |  | Shares (1) |  | Amounts |  | Shares |  | Amounts
March 2014 |  | 17,311 |  |  | $ | 250,000 |  |  | 9,113 |  |  | $ | 155,983 |
March 2017 |  | 17,311 |  |  | $ | 250,000 |  |  | 843 |  |  | $ | 30,107 |
(1) The approval of each of the share buyback programs by the Swiss Takeover Board limits the number of shares that the Company may repurchase to no more than 10% of its authorized share capital and voting rights.
Schedule of components of accumulated other comprehensive income (loss) | The components of accumulated other comprehensive loss were as follows (in thousands):
|  | Accumulated Other Comprehensive Income (Loss)
|  | Cumulative Translation Adjustment (1) |  | Defined Benefit Plans(1) |  | Deferred Hedging Gains (Losses) |  | Total
March 31, 2017 |  | $ | (89,708 | ) |  | $ | (10,480 | ) |  | $ | (518 | ) |  | $ | (100,706 | )
Other comprehensive income (loss) |  | 5,860 |  |  | 4,082 |  |  | (2,691 | ) |  | 7,251 |
March 31, 2018 |  | $ | (83,848 | ) |  | $ | (6,398 | ) |  | $ | (3,209 | ) |  | $ | (93,455 | )
_______________________________________ (1) Tax effect was not significant as of March 31, 2018 or 2017.

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