Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Fair Value Measurements
Cash and cash equivalents	$ 119,528	$ 138,841	$ 64,886
Fair value measured on a recurring basis
Fair Value Measurements
Cash and cash equivalents	119,528	138,841	64,886
Available for sale securities	287,136	283,060	277,471
Trading securities	100,892	105,067	95,957
Total assets measured at fair value	506,713	523,984	437,726
Fair value measured on a recurring basis \| Foreign currency derivatives
Fair Value Measurements
Derivative instruments, net	(620)	(818)	(29)
Fair value measured on a recurring basis \| Commodity derivatives
Fair Value Measurements
Derivative instruments, net	(223)	(2,166)	(559)
Fair value measured on a recurring basis \| Level 1
Fair Value Measurements
Cash and cash equivalents	119,528	138,841	64,886
Available for sale securities	4,124	4,102	4,038
Trading securities	82,512	86,925	78,362
Total assets measured at fair value	205,941	227,702	146,727
Fair value measured on a recurring basis \| Level 1 \| Commodity derivatives
Fair Value Measurements
Derivative instruments, net	(223)	(2,166)	(559)
Fair value measured on a recurring basis \| Level 2
Fair Value Measurements
Available for sale securities	283,012	278,958	273,433
Trading securities	18,380	18,142	17,595
Total assets measured at fair value	300,772	296,282	290,999
Fair value measured on a recurring basis \| Level 2 \| Foreign currency derivatives
Fair Value Measurements
Derivative instruments, net	$ (620)	$ (818)	$ (29)

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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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Fair value of asset after deduction of liability.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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