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SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Reconciliation of Total Segment Gross Margin to Total Income Before Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Acquisition-related charges, corporate allocations and effects of foreign exchange rates | $ 38,587 | $ 43,883 | $ 75,449 | $ 91,937
Research and development | 229,064 | 220,751 | 448,102 | 431,331
Selling, general and administrative | 181,909 | 192,253 | 354,540 | 380,598
Interest expense | 38,880 | 40,472 | 78,266 | 80,822
Other expense (income), net | 3,882 | (2,568) | 7,079 | (4,186)
Income before income taxes | 527,402 | 424,927 | 1,011,208 | 796,443
Operating segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Total segment gross margin | $ 1,019,724 | $ 919,718 | $ 1,974,644 | $ 1,776,945

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