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TRADING AND AVAILABLE FOR SALE SECURITIES AT FAIR VALUE (Details) - USD ($) | Mar. 31, 2021 | Mar. 31, 2020
--- | --- | ---
Trading securities | $ 736,188,000 | $ 156,544,000
Total Available-for-sale securities, at fair value | 1,000 | 6,438,000
Certificate of deposit |  |
Total Available-for-sale securities, at fair value | 0 | 5,076,000
Preferred Shares |  |
Total Available-for-sale securities, at fair value | 0 | 284,000
Debt securities |  |
Total Available-for-sale securities, at fair value | 0 | 405,000
Equity securities |  |
Trading securities | 334,763,000 | 58,519,000
Total Available-for-sale securities, at fair value | 1,000 | 1,000
Mutual investment funds |  |
Total Available-for-sale securities, at fair value | 0 | 672,000
Non-U.S. sovereign debt |  |
Trading securities | 333,619,000 | 28,495,000
U.S. sovereign debt |  |
Trading securities | 10,828,000 | 0
Corporate equity |  |
Trading securities | 47,340,000 | 69,530,000
Total Available-for-sale securities, at fair value | 1,000 | 1,000
Exchange traded notes |  |
Trading securities | $ 9,638,000 | $ 0

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