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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Statement of Comprehensive Income [Abstract] |  |  |  |
Net income | $ 56,358 | $ 47,045 | $ 93,365 | $ 68,986
Other comprehensive income (loss): |  |  |  |
Currency translation gain, net of taxes | 2,185 | 550 | 3,641 | 254
Defined benefit pension plans: |  |  |  |
Net gain and prior service costs, net of taxes | 532 | 17 | 380 | 327
Amortization included in operating expenses | 52 | 432 | 102 | 865
Hedging gain (loss): |  |  |  |
Deferred hedging gain (loss), net of taxes | (2,140) | 564 | (5,349) | 1,529
Reclassification of hedging loss included in cost of goods sold | 2,596 | 155 | 3,129 | 895
Other comprehensive income: | 3,225 | 1,718 | 1,903 | 3,870
Total comprehensive income | $ 59,583 | $ 48,763 | $ 95,268 | $ 72,856

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