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Financial Statement Components - Effects on net income of amounts reclassified from AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2018 | Mar. 31, 2017
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Revenues | $ 1,021,294 | $ 913,809 | $ 2,966,697 | $ 2,541,367
Costs of revenues | (368,688) | (343,274) | (1,069,471) | (939,617)
Interest expense | 28,119 | 30,472 | 86,067 | 91,828
Net income | 306,881 | 253,562 | 453,498 | 669,914
Unrealized Gains (Losses) on Defined Benefit Plans |  |  |  |
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Other comprehensive (income) loss, reclassification adjustment from AOCI, pension and other postretirement benefit plans, net of tax | (400) | (300) | (1,200) | (1,600)
Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) on cash flow hedges from foreign exchange and interest rate contracts |  |  |  |
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Revenues | (65) | 2,441 | 1,300 | (465)
Costs of revenues | 570 | (342) | 1,908 | (498)
Interest expense | 189 | 189 | 567 | 567
Net income | 694 | 2,288 | 3,775 | (396)
Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) on available-for-sale securities |  |  |  |
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Other expense (income), net | $ 2 | $ (53) | $ (61) | $ 181

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