Financial Instruments - Summary of Investments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available for Sale [Roll Forward]
Fair value at beginning of period	$ 39,459	$ 43,485
Purchases	4,440	14,122
Redemptions	0	(3,310)
Maturities	(5,450)	(15,155)
Change in bond premium	(16)	(1,099)
Fair market value adjustment	76	1,416
Fair value at end of period	$ 38,509	$ 39,459

Available-for-sale securities, debt securities, fair market value adjustment.

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Debt Securities, Available for Sale

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Increase (Decrease) in bond premium.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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