Earnings Per Share (Calculation Of Basic And Diluted Earnings (Loss) Per Common Share Class) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic EPS
Net income (loss) available to common shares before allocation		$ 5,558	$ (83,534)	$ 15,707	$ (76,235)
Common Class A [Member]
Basic EPS
Net income (loss) available to common shares before allocation		$ 5,558	$ (83,534)	$ 15,707	$ (76,235)
Multiply: % allocated on weighted average shares outstanding		1.00%	0.925%	1.00%	0.862%
Net Income (loss) available to common shares after allocation		$ 5,558	$ (77,278)	$ 15,707	$ (65,747)
Weighted average shares outstanding		20,000,753	15,121,460	19,998,841	7,674,609
Earnings (loss) per share, basic	[1],[2]	$ 0.28	$ (5.11)	$ 0.79	$ (8.57)
Diluted EPS
Add: Dilutive effects of assumed exercises of stock options		147,455		179,248	0
Weighted ave. share including dilutive potential common shares		20,148,208	15,121,460	20,178,089	7,674,609
Earnings (loss) per share, diluted	[1],[2]	$ 0.28	$ (5.11)	$ 0.78	$ (8.57)
Anti-dilutive stock options excluded from diluted EPS calculation		15,000	95,602	15,000	168,709
Common stock shares converted					1,224,212
Common Class B [Member]
Basic EPS
Net income (loss) available to common shares before allocation			$ (83,534)		$ (76,235)
Multiply: % allocated on weighted average shares outstanding			0.075%		0.138%
Net Income (loss) available to common shares after allocation			$ (6,256)		$ (10,488)
Weighted average shares outstanding			6,121,052		6,121,052
Earnings (loss) per share, basic	[2]		$ (1.02)		$ (1.71)
Diluted EPS
Weighted ave. share including dilutive potential common shares			6,121,052		6,121,052
Earnings (loss) per share, diluted	[2]		$ (1.02)		$ (1.71)
Common stock shares price per share			$ 0.20		$ 0.20

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[2] <div>(1) For further details on the allocation of net income available to common stockholders and per share information, see Note ##eps "Earnings per Share".</div>