Business Combinations (Gross Carrying Amounts and Accumulated Amortization) (Details) - Ozark National Life Insurance Company - USD ($) $ in Thousands		9 Months Ended
Jan. 31, 2019	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Gross Carrying Amount		$ 9,600	$ 9,600
Accumulated Amortization		$ (1,216)	(669)
Trademarks / trade names
Business Acquisition [Line Items]
Weighted-Average Amortization Period	15 years	15 years
Gross Carrying Amount		$ 2,800	2,800
Accumulated Amortization		$ (311)	(171)
Internally developed software
Business Acquisition [Line Items]
Weighted-Average Amortization Period	7 years	7 years
Gross Carrying Amount		$ 3,800	3,800
Accumulated Amortization		(905)	(498)
Insurance licenses
Business Acquisition [Line Items]
Gross Carrying Amount		3,000	3,000
Accumulated Amortization		$ 0	$ 0

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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