Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Nov. 30, 2021	May 31, 2021
Financial assets
Equity investments measured at fair value		$ 12,185
Debt securities classified under available-for-sale method	$ 154,442
Financial liabilities
Contingent consideration	62,339	60,657
Convertible debenture	554,854	667,624
Fair Value, Measurements, Recurring
Financial assets
Cash and cash equivalents	331,783	488,466
Convertible notes receivable	1,560	2,485
Equity investments measured at fair value	8,302
Debt securities classified under available-for-sale method	154,442
Financial liabilities
Warrant liability	40,455	78,168
Contingent consideration	62,339	60,657
Total recurring fair value measurements	883,605	1,041,405
Fair Value, Measurements, Recurring | APHA 24 Convertible Debenture
Financial liabilities
Convertible debenture	284,724	399,444
Level 1
Financial assets
Equity investments measured at fair value	5,918	9,251
Level 1 | Fair Value, Measurements, Recurring
Financial assets
Cash and cash equivalents	331,783	488,466
Equity investments measured at fair value	5,918
Financial liabilities
Total recurring fair value measurements	337,701	497,717
Level 2
Financial assets
Equity investments measured at fair value	2,384	2,934
Level 2 | Fair Value, Measurements, Recurring
Financial assets
Convertible notes receivable	1,560	2,485
Equity investments measured at fair value	2,384
Financial liabilities
Total recurring fair value measurements	3,944	5,419
Level 3 | Fair Value, Measurements, Recurring
Financial assets
Debt securities classified under available-for-sale method	154,442
Financial liabilities
Warrant liability	40,455	78,168
Contingent consideration	62,339	60,657
Total recurring fair value measurements	541,960	538,269
Level 3 | Fair Value, Measurements, Recurring | APHA 24 Convertible Debenture
Financial liabilities
Convertible debenture	$ 284,724	$ 399,444