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Summary of Significant Accounting Policies - Credit Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2023 | Dec. 31, 2021 | Dec. 31, 2020
Accounting Policies [Abstract] |  |  |  |  |  |  |
OTTI on AFS debt securities (Note 5) |  |  | $ 4,943 | $ 0 | $ 12,621 | $ 13,726 | $ 0
Bad debt expense on related party receivable (Note 9) |  |  | 4,440 | 0 | 6,723 | 5,029 | 0
Bad debt expense on other receivables |  |  | 0 | 0 | 1,236 | 0 | 0
Provision for credit losses | $ 0 | $ 18,790 | $ 9,383 | $ 0 | $ 20,580 | $ 18,755 | $ 0

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- Definition Provision for Other Credit Losses, Other than Temporary Impairment and Trade Receivable Write Offs, Available for Sale Debt Securities + References No definition available. + Details
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