Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Fair Value Measurements
Cash and cash equivalents	$ 113,046	$ 127,165	$ 119,528
Fair value measured on a recurring basis
Fair Value Measurements
Cash and cash equivalents	113,046	127,165	119,528
Available for sale securities	368,252	365,041	287,136
Trading securities	114,546	121,541	100,892
Total assets measured at fair value	595,319	612,091	506,713
Fair value measured on a recurring basis \| Foreign currency derivatives
Fair Value Measurements
Derivative instruments, net	(143)	92	(620)
Fair value measured on a recurring basis \| Commodity derivatives
Fair Value Measurements
Derivative instruments, net	(382)	(1,748)	(223)
Fair value measured on a recurring basis \| Level 1
Fair Value Measurements
Cash and cash equivalents	113,046	127,165	119,528
Available for sale securities	2,938	2,961	4,124
Trading securities	98,350	104,642	82,512
Total assets measured at fair value	213,952	233,020	205,941
Fair value measured on a recurring basis \| Level 1 \| Commodity derivatives
Fair Value Measurements
Derivative instruments, net	(382)	(1,748)	(223)
Fair value measured on a recurring basis \| Level 2
Fair Value Measurements
Available for sale securities	365,314	362,080	283,012
Trading securities	16,196	16,899	18,380
Total assets measured at fair value	381,367	379,071	300,772
Fair value measured on a recurring basis \| Level 2 \| Foreign currency derivatives
Fair Value Measurements
Derivative instruments, net	$ (143)	$ 92	$ (620)

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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