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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Registered Shares | Additional Paid-in Capital | Treasury Shares | Retained Earnings | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | --- | ---
Beginning of the period (in shares) at Mar. 31, 2016 |  | 173,106 |  | 10,697 |  |
Beginning of the period at Mar. 31, 2016 | $ 759,948 | $ 30,148 | $ 6,616 | $ (128,407) | $ 963,576 | $ (111,985)
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Total comprehensive income | $ 24,093 |  |  |  | 21,941 | 2,152
Purchase of registered shares (in shares) | 1,600 |  |  | 1,590 |  |
Purchases of registered shares | $ (24,422) |  |  | $ (24,422) |  |
Tax effects from share-based awards | (704) |  | (704) |  |  |
Sales of shares upon exercise of stock options | 599 |  | 206 | $ 393 |  |
Sales of shares upon exercise of options and purchase rights (in shares) |  |  |  | (52) |  |
Issuance of shares upon vesting of restricted stock units | (9,185) |  | (14,709) | $ 7,773 | (2,249) |
Issuance of shares upon vesting of restricted stock units (in shares) |  |  |  | (861) |  |
Share-based compensation expense | 8,591 |  | 8,591 |  |  |
End of the period (in shares) at Jun. 30, 2016 |  | 173,106 |  | 11,374 |  |
End of the period at Jun. 30, 2016 | 758,920 | $ 30,148 | 0 | $ (144,663) | 983,268 | (109,833)
Beginning of the period (in shares) at Mar. 31, 2017 |  | 173,106 |  | 10,727 |  |
Beginning of the period at Mar. 31, 2017 | 856,111 | $ 30,148 | 26,596 | $ (174,037) | 1,074,110 | (100,706)
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Total comprehensive income | $ 35,685 |  |  |  | 37,007 | (1,322)
Purchase of registered shares (in shares) | 20 |  |  | 20 |  |
Purchases of registered shares | $ (624) |  |  | $ (624) |  |
Sales of shares upon exercise of stock options | 12,569 |  | 7,452 | $ 5,117 |  |
Sales of shares upon exercise of options and purchase rights (in shares) |  |  |  | (452) |  |
Issuance of shares upon vesting of restricted stock units | (21,683) |  | (33,897) | $ 12,214 | 0 |
Issuance of shares upon vesting of restricted stock units (in shares) |  |  |  | (1,098) |  |
Share-based compensation expense | 11,075 |  | 11,075 |  |  |
End of the period (in shares) at Jun. 30, 2017 |  | 173,106 |  | 9,197 |  |
End of the period at Jun. 30, 2017 | 950,338 | $ 30,148 | 14,519 | $ (157,330) | 1,165,029 | $ (102,028)
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Cumulative effect of adoption of new accounting standard (Note 1) | $ 57,205 |  | $ 3,293 |  | $ 53,912 |

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