Derivatives (Fair Value Of Derivative Instruments And Locations In Balance Sheets) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Assets, Presented Gross		$ 8,547
Derivative Asset, Effect Of Netting Arrangement		(8,547)
Derivative Asset, Fair Value, After Netting Arrangement, Net		0
Liabilities, Presented Gross	$ 12,571	32,113
Liabilities, Effects of Netting	0	(8,547)
Liabilities, Presented Net	12,571	23,566
Current derivative liabilities
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Assets, Presented Gross		8,547
Derivative Asset, Effect Of Netting Arrangement		(8,547)
Derivative Asset, Fair Value, After Netting Arrangement, Net		0
Liabilities, Presented Gross	12,571	32,113
Liabilities, Effects of Netting	0	(8,547)
Liabilities, Presented Net	$ 12,571	$ 23,566