|
Investments - Additional Information (Details) (USD $)
|
3 Months Ended |
|
|
|
Mar. 31, 2015
MortgageLoan
instrument
security_issue
|
Mar. 31, 2014
MortgageLoan
instrument
|
Dec. 31, 2014
instrument
security_issue
|
Dec. 31, 2013
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| Investment Securities [Line Items] |
|
|
|
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| Derivative, Number of Instruments Held |
0 |
|
0 |
|
| Additional review procedure performed, percent of amortized cost |
90.00% |
|
|
|
| Additional review procedure performed, percent of amortized cost, formal documentation prepared |
80.00% |
|
|
|
| Additional review procedure performed, decline in fair market value percent of amortized cost, formal documentation prepared, significant change in investments |
10.00% |
|
|
|
| Number of fixed maturities and equity securities below cost |
72 |
|
96 |
|
| Other-than-temporary impairment losses on fixed maturity and equity securities |
$ 0 |
$ 213,000 |
|
|
| Percentage of invested assets in commercial mortgage loans |
15.00% |
|
15.00% |
|
| Average loan to value ratio for overall portfolio |
46.00% |
|
46.00% |
|
| Number of loans refinanced |
3 |
2 |
|
|
| Amount of loans refinanced |
4,500,000 |
3,200,000 |
|
|
| Maximum period of commits to fund commercial mortgage loans |
120 days |
|
|
|
| Net other-than-temporary impairment losses recognized in earnings |
7,000 |
162,000 |
|
|
| Less than one year |
|
|
|
|
| Investment Securities [Line Items] |
|
|
|
|
| Number of fixed maturities and equity securities below cost |
44 |
|
40 |
|
| One year or more and less than three years |
|
|
|
|
| Investment Securities [Line Items] |
|
|
|
|
| Number of fixed maturities and equity securities below cost |
23 |
|
50 |
|
| Three years or more |
|
|
|
|
| Investment Securities [Line Items] |
|
|
|
|
| Number of fixed maturities and equity securities below cost |
5 |
|
6 |
|
| Mortgage loans, net |
|
|
|
|
| Investment Securities [Line Items] |
|
|
|
|
| Allowance |
$ 1,923,000 |
|
1,914,000 |
$ 3,251,000 |