|
Fair Value Measurements - Schedule of Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
12 Months Ended |
|
Sep. 30, 2014
|
Sep. 30, 2014
|
Dec. 31, 2013
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
|
| Asset value, beginning of period |
$ 1,277 |
$ 1,433 |
$ 47,388 |
| Liability value, beginning of period |
3,564 |
4,703 |
1,080 |
| Asset, Gain (Loss) Included in Earnings |
0 |
56 |
582 |
| Liability, Gain (Loss) Included in Earnings |
965 |
1,840 |
(4,208) |
| Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |
(63) |
(173) |
(340) |
| Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) |
0 |
0 |
0 |
| Asset, Purchases |
0 |
0 |
0 |
| Liability, Purchases |
0 |
0 |
0 |
| Asset, Issuances |
0 |
0 |
0 |
| Liability, Issuances |
(138) |
(382) |
(737) |
| Asset, Sales |
0 |
0 |
0 |
| Liability, Sales |
0 |
0 |
0 |
| Asset, Settlements |
0 |
102 |
2,108 |
| Liability, Settlements |
(77) |
(57) |
(152) |
| Asset Transfers Into Level 3 |
0 |
0 |
116 |
| Liability, Transfers Into Level 3 |
0 |
0 |
0 |
| Asset, Transfers out of Level 3 |
0 |
0 |
44,205 |
| Liability, Transfers out of Level 3 |
0 |
0 |
0 |
| Asset value, end of period |
1,214 |
1,214 |
1,433 |
| Liability value, end of period |
2,538 |
2,538 |
4,703 |
|
Fixed maturity securities available for sale
|
|
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
|
| Asset value, beginning of period |
1,277 |
1,433 |
46,133 |
| Asset, Gain (Loss) Included in Earnings |
0 |
56 |
(59) |
| Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |
(63) |
(173) |
287 |
| Asset, Purchases |
0 |
0 |
0 |
| Asset, Issuances |
0 |
0 |
0 |
| Asset, Sales |
0 |
0 |
0 |
| Asset, Settlements |
0 |
102 |
839 |
| Asset Transfers Into Level 3 |
0 |
0 |
116 |
| Asset, Transfers out of Level 3 |
0 |
0 |
44,205 |
| Asset value, end of period |
1,214 |
1,214 |
1,433 |
|
Equity securities available for sale
|
|
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
|
| Asset value, beginning of period |
0 |
0 |
1,255 |
| Asset, Gain (Loss) Included in Earnings |
0 |
0 |
641 |
| Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |
0 |
0 |
(627) |
| Asset, Purchases |
0 |
0 |
0 |
| Asset, Issuances |
0 |
0 |
0 |
| Asset, Sales |
0 |
0 |
0 |
| Asset, Settlements |
0 |
0 |
1,269 |
| Asset Transfers Into Level 3 |
0 |
0 |
0 |
| Asset, Transfers out of Level 3 |
0 |
0 |
0 |
| Asset value, end of period |
$ 0 |
$ 0 |
$ 0 |