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v3.23.1

Investments (Narrative) (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 USD ($) shares | Mar. 31, 2022 USD ($) investment | Dec. 31, 2022 USD ($) investment shares | Apr. 12, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Shares held | shares | 1,000,000 |  | 1,100,000 |
Investment in corporate debt securities | $ 35,300,000 |  | $ 58,400,000 |
Gross unrealized gains | 1,000,000 |  | $ 600,000 |
Investments in an unrealized loss position | investment |  | 0 | 0 |
Impairment losses | 0 |  | $ 0 |
Loss from equity method investment, net | (9,182,000) | $ (785,000) |  |
Management fees recognized | 0 | 800,000 |  |
Equity method investments | 100,000,000 |  | 112,300,000 |
OCV Management, LLC |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Maximum exposure of investment | 100,000,000 |  | 112,300,000 |
Distribution from equity method investment | 0 | $ 0 |  |
Corporate Debt Securities |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Debt securities, available-for-sale, coupon rate |  |  |  | 4.00%
Debt securities, available-for-sale |  |  |  | $ 15,000,000
Carrying value of investment | 16,000,000 |  | 15,600,000 |
Maximum exposure of investment | $ 16,000,000 |  | $ 15,600,000 |
Public Stock Offering |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Shares issued in offering (in shares) | shares | 52,393 |  |  |

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