Condensed Financial Information Of Parent Company Condensed Financial Information Of Parent Company (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Investment Income, Dividend	$ 991	$ 1,573	$ 1,646
Total Income	1,352,656	1,249,551	1,362,455
Interest Expense	54,905	88,933	205,264
Income Tax Expense (Benefit)	(215,375)	(75,173)	(164,304)
Net earnings (loss)	606,959	(1,237,574)	468,636
Parent Only
Condensed Financial Statements, Captions [Line Items]
Other Income	52,955	14,276	9,739
Investment Income, Dividend	182,000	258,000	336,000
Total Income	234,955	272,276	345,739
Interest Expense	3,527	4,394	6,637
Operating Expenses	18,913	11,184	9,833
Total Expenses	22,440	15,578	16,470
Net earnings from continuing operations	212,515	256,698	329,269
Income Tax Expense (Benefit)	(6,188)	(3,268)	2,202
Income Loss From Continuing Operations Before Income Loss From Equity Method Investments	206,327	253,430	331,471
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions	400,632	(1,491,004)	137,165
Net earnings (loss)	$ 606,959	$ (1,237,574)	$ 468,636