Condensed Financial Information Of Parent Company Condensed Financial Information Of Parent Company (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Investment Income, Dividend	$ 1,319	$ 991	$ 1,573
Total Income	1,631,316	1,352,656	1,249,551
Interest Expense	265,727	54,905	88,933
Income Tax Expense (Benefit)	(143,955)	(215,375)	(75,173)
Net earnings (loss)	423,613	606,959	(1,237,574)
Preferred Stock Dividends, Income Statement Impact	19,339	0	0
Net Income (Loss) Available to Common Stockholders, Basic	404,274	606,959	(1,237,574)
Parent Only
Condensed Financial Statements, Captions [Line Items]
Other Income	(7,234)	52,955	14,276
Investment Income, Dividend	129,000	182,000	258,000
Total Income	121,766	234,955	272,276
Interest Expense	5,824	3,527	4,394
Operating Expenses	6,015	18,913	11,184
Total Expenses	11,839	22,440	15,578
Net earnings from continuing operations	109,927	212,515	256,698
Income Tax Expense (Benefit)	9,682	(6,188)	(3,268)
Income Loss From Continuing Operations Before Income Loss From Equity Method Investments	119,609	206,327	253,430
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions	304,004	400,632	(1,491,004)
Net earnings (loss)	$ 423,613	$ 606,959	$ (1,237,574)