Fair Value Measurements - Financial assets and liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Assets:
Investments in marketable securities	$ 10,671	$ 14,463
Derivatives	4,978
Total assets	15,649
Liabilities:
Derivatives	2,463
Level 1
Assets:
Investments in marketable securities	10,671
Derivatives	0
Total assets	10,671
Liabilities:
Derivatives	0
Level 2
Assets:
Derivatives	1,438
Total assets	1,438
Liabilities:
Derivatives	2,463
Level 3
Assets:
Investments in marketable securities	0
Derivatives	3,540
Total assets	3,540
Liabilities:
Derivatives	$ 0