Fair Value Measurements (Details 3)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
The Lincoln National Life Insurance | Face Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration Risk, Percentage	9.60%	10.40%
Carrier rating	A+	A+
The Lincoln National Life Insurance | Fair Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration Risk, Percentage	12.70%	13.40%
Transamerica Financial Life Insurance | Face Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration Risk, Percentage	10.40%	9.60%
Carrier rating	A+	A+
Transamerica Financial Life Insurance | Fair Value of Life Insurance Policies
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Concentration Risk, Percentage	12.40%	13.10%