Fair Value Measurements - Financial assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets:
Investments in marketable securities	$ 36,993	$ 14,463
Derivatives	3,955	4,214
Total assets	40,948	18,677
Liabilities:
Derivatives		2,077
Level 1
Assets:
Investments in marketable securities	28,301	6,003
Derivatives		0
Total assets	28,301	6,003
Liabilities:
Derivatives		313
Level 2
Assets:
Investments in marketable securities	8,692	8,460
Derivatives	2,655	2,995
Total assets	11,347	11,455
Liabilities:
Derivatives		1,764
Level 3
Assets:
Investments in marketable securities	0	0
Derivatives	1,300	1,219
Total assets	1,300	1,219
Liabilities:
Derivatives	$ 0	$ 0