• Filing Date: 2018-08-20
  • Form Type: 10-Q
  • Description: Quarterly report
v3.10.0.1
Fair Value Measurements - Life Insurance Issuer Concentrations (Details) - Credit Concentration Risk - Moody's Rating A1 - S&P Rating AA-
6 Months Ended
Jun. 30, 2018
Transamerica Life Insurance Company | Percentage of Total Fair Value  
Concentration Risk [Line Items]  
Concentrations risk percentage 18.50%
Transamerica Life Insurance Company | Percentage of Total Death Benefit  
Concentration Risk [Line Items]  
Concentrations risk percentage 21.10%
Lincoln National Life Insurance Company | Percentage of Total Fair Value  
Concentration Risk [Line Items]  
Concentrations risk percentage 23.40%
Lincoln National Life Insurance Company | Percentage of Total Death Benefit  
Concentration Risk [Line Items]  
Concentrations risk percentage 19.80%