Fair Value Measurements (Financial Assets And Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Investments in marketable securities		$ 14,463
Derivatives	$ 8,547
Total assets	8,547
Liabilities:
Derivatives	13,121
Level 1
Assets:
Investments in marketable securities	0
Derivatives	0
Total assets	0
Liabilities:
Derivatives	0
Level 2
Liabilities:
Derivatives	13,121
Level 3
Assets:
Investments in marketable securities	0
Derivatives	8,547
Total assets	8,547
Liabilities:
Derivatives	$ 0