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Related Party Transactions (Related Party Assets) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020
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Related party assets: |  |
Amounts due to related parties | $ (19,046) | $ (402)
Related party assets | 9,406 | 34,784
Blackwater [Member] |  |
Related party assets: |  |
Notes receivable | 22,897 | 25,293
Mercury [Member] |  |
Related party assets: |  |
Notes receivable | $ 5,555 | $ 9,893

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- Details
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