Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Fair Value Measurements
Cash and cash equivalents	$ 78,895	$ 138,841	$ 91,711
Fair value measured on a recurring basis
Fair Value Measurements
Cash and cash equivalents	78,895	138,841	91,711
Available for sale securities	357,875	283,060	285,968
Trading securities	119,592	105,067	103,876
Total assets measured at fair value	555,472	523,984	481,515
Fair value measured on a recurring basis \| Foreign currency derivatives
Fair Value Measurements
Derivative instruments, net	(61)	(818)	187
Fair value measured on a recurring basis \| Commodity derivatives
Fair Value Measurements
Derivative instruments, net	(829)	(2,166)	(227)
Fair value measured on a recurring basis \| Level 1
Fair Value Measurements
Cash and cash equivalents	78,895	138,841	91,711
Available for sale securities	2,940	4,102	4,135
Trading securities	102,805	86,925	85,877
Total assets measured at fair value	183,811	227,702	181,496
Fair value measured on a recurring basis \| Level 1 \| Commodity derivatives
Fair Value Measurements
Derivative instruments, net	(829)	(2,166)	(227)
Fair value measured on a recurring basis \| Level 2
Fair Value Measurements
Available for sale securities	354,935	278,958	281,833
Trading securities	16,787	18,142	17,999
Total assets measured at fair value	371,661	296,282	300,019
Fair value measured on a recurring basis \| Level 2 \| Foreign currency derivatives
Fair Value Measurements
Derivative instruments, net	$ (61)	$ (818)	$ 187

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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