Fair Value Measurements (Financial Assets And Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets:
Investments in marketable securities		$ 14,463
Derivatives	$ 12,203
Total assets	12,203
Liabilities:
Derivatives	14,715
Level 1
Assets:
Investments in marketable securities	0
Derivatives	0
Total assets	0
Liabilities:
Derivatives	0
Level 2
Assets:
Derivatives	768
Total assets	768
Liabilities:
Derivatives	14,715
Level 3
Assets:
Investments in marketable securities	0
Derivatives	11,435
Total assets	11,435
Liabilities:
Derivatives	$ 0