Income Taxes Changes in Net Deferred Tax Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Deferred Income Tax Expense (Benefit)	$ 402	$ (1,573)	$ (62,633)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	2,774	(5,129)
Deferred Tax from Change in Unrealized Gain Loss Atributible to Deferred Acquisition Costs and Value of Business Acquired	(391)	(17)
Reclassifications of Temporary to Permanent Equity	79	0
Deferred Tax Liabilities, Net	$ (9,564)	$ (12,428)	$ (5,709)