Fair Value Measurements (Details 3)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
The Lincoln National Life Insurance | Face Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentrations risk percentage	9.70%	9.60%
The Lincoln National Life Insurance | Fair Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentrations risk percentage	12.50%	12.70%
Carrier rating	A+	A+
Transamerica Financial Life Insurance | Face Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentrations risk percentage	10.00%	10.40%
Transamerica Financial Life Insurance | Fair Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentrations risk percentage	11.50%	12.40%
Carrier rating	A+	A+