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Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2019 | Nov. 30, 2018 | Aug. 31, 2018 | Feb. 28, 2018 | Nov. 30, 2017 | Aug. 31, 2017 | Feb. 28, 2019 | Feb. 28, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |  |  |  |  |
Balance | $ 3,027,244 | $ 3,345,968 | $ 3,016,526 | $ 2,553,033 | $ 2,565,881 | $ 2,302,793 | $ 3,016,526 | $ 2,302,793
Other comprehensive income (loss) before reclassifications | (3,158) | (5,702) | (6,187) | 2,374 | (11,394) | 35,204 |  |
Amounts reclassified from accumulated other comprehensive income (loss) | (295) | (294) | (295) | (294) | (172) | (172) |  |
Other comprehensive (loss) income | (3,453) | (5,996) | (6,482) | 2,080 | (11,566) | 35,032 | (15,931) | 25,546
Balance | 3,179,492 | 3,027,244 | 3,345,968 | 2,893,997 | 2,553,033 | 2,565,881 | 3,179,492 | 2,893,997
Foreign Currency |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |  |  |  |  |
Balance | (7,092) | 3,531 | 6,550 | 11,084 | 22,458 | (12,726) | 6,550 | (12,726)
Other comprehensive income (loss) before reclassifications | 5,025 | (10,623) | (3,019) | 2,374 | (11,374) | 35,184 |  |
Amounts reclassified from accumulated other comprehensive income (loss) | 0 | 0 | 0 | 0 | 0 | 0 |  |
Other comprehensive (loss) income | 5,025 | (10,623) | (3,019) | 2,374 | (11,374) | 35,184 |  |
Balance | (2,067) | (7,092) | 3,531 | 13,458 | 11,084 | 22,458 | (2,067) | 13,458
Unrealized Income on Interest Rate Hedges |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |  |  |  |  |
Balance | 11,613 | 6,986 | 10,449 | 11,038 | 11,210 | 11,382 | 10,449 | 11,382
Other comprehensive income (loss) before reclassifications | (8,183) | 4,921 | (3,168) | 0 | 0 | 0 |  |
Amounts reclassified from accumulated other comprehensive income (loss) | (295) | (294) | (295) | (294) | (172) | (172) |  |
Other comprehensive (loss) income | (8,478) | 4,627 | (3,463) | (294) | (172) | (172) |  |
Balance | 3,135 | 11,613 | 6,986 | 10,744 | 11,038 | 11,210 | 3,135 | 10,744
Other |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |  |  |  |  |
Balance | (656) | (656) | (656) | (1,685) | (1,665) | (1,685) | (656) | (1,685)
Other comprehensive income (loss) before reclassifications | 0 | 0 | 0 | 0 | (20) | 20 |  |
Amounts reclassified from accumulated other comprehensive income (loss) | 0 | 0 | 0 | 0 | 0 | 0 |  |
Other comprehensive (loss) income | 0 | 0 | 0 | 0 | (20) | 20 |  |
Balance | (656) | (656) | (656) | (1,685) | (1,685) | (1,665) | (656) | (1,685)
Total |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |  |  |  |  |
Balance | 3,865 | 9,861 | 16,343 | 20,437 | 32,003 | (3,029) | 16,343 | (3,029)
Balance | $ 412 | $ 3,865 | $ 9,861 | $ 22,517 | $ 20,437 | $ 32,003 | $ 412 | $ 22,517

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