Business Combinations - Schedule of Fair Value of Identifiable Intangible Assets Acquired (Details) - Ozark National Life Insurance Company And NIS - USD ($) $ in Thousands		12 Months Ended
	Jan. 31, 2019	Dec. 31, 2020
Business Acquisition [Line Items]
Fair value, finite-lived intangible assets acquired	$ 9,600
Trademarks / trade names
Business Acquisition [Line Items]
Fair value, finite-lived intangible assets acquired	$ 2,800
Weighted-Average Amortization Period	15 years	15 years
Internally developed software
Business Acquisition [Line Items]
Fair value, finite-lived intangible assets acquired	$ 3,800
Weighted-Average Amortization Period	7 years	7 years
Insurance licenses
Business Acquisition [Line Items]
Insurance licenses	$ 3,000