|
Separate Accounts - Additional Information (Details) (USD $)
|
Mar. 31, 2015
block
|
Dec. 31, 2014
|
| Net Amount at Risk by Product and Guarantee [Line Items] |
|
|
| Number of Blocks of Variable Universal Life Policies and Variable Annuity Contracts |
2 |
|
| Separate account liabilities |
$ 412,357,000 |
$ 406,501,000 |
| Separate account assets |
412,357,000 |
406,501,000 |
| Modified Coinsurance Transaction Separate Account Fund Balances |
319,900,000 |
318,100,000 |
| Future policy benefits |
935,306,000 |
930,761,000 |
| Guaranteed minimum withdrawal benefit |
|
|
| Net Amount at Risk by Product and Guarantee [Line Items] |
|
|
| Value of variable annuity separate accounts |
131,300,000 |
132,300,000 |
| Separate Accounts Guarantee Liability |
(2,800,000) |
(1,100,000) |
| Direct Block [Member] |
|
|
| Net Amount at Risk by Product and Guarantee [Line Items] |
|
|
| Future policy benefits |
400,000 |
400,000 |
| Assumed Block [Member] |
|
|
| Net Amount at Risk by Product and Guarantee [Line Items] |
|
|
| Future policy benefits |
$ 600,000 |
$ 600,000 |