|
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, 2012
|
Sep. 30, 2012
|
Dec. 31, 2011
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
| Beginning balance |
$ 46,148 |
$ 44,882 |
$ 56,981 |
| Included in earnings |
(340) |
(333) |
103 |
| Included in other comprehensive income |
(47) |
(60) |
1,436 |
| Beginning balance |
|
|
|
| Purchases |
|
|
|
| Issuances |
|
|
|
| Sales |
|
|
|
| Other dispositions |
(697) |
(3,239) |
(3,177) |
| Transfers into Level 3 |
7,990 |
11,804 |
8,640 |
| Transfers out of Level 3 |
(53) |
(53) |
(19,101) |
| Ending balance |
53,001 |
53,001 |
44,882 |
| Net unrealized gains |
(376) |
(72) |
1,506 |
| Liabilities, Beginning balance |
278 |
(187) |
(2,799) |
| Liabilities, Included in earnings |
(978) |
(295) |
2,500 |
| Liabilities, Included in other comprehensive income |
|
|
|
| Purchases, issuances, sales and other dispositions: |
|
|
|
| Liabilities, Purchases |
|
|
|
| Liabilities, Issuances |
807 |
1,003 |
163 |
| Liabilities, Sales |
|
|
|
| Liabilities, Other dispositions |
(516) |
(930) |
(51) |
| Liabilities, Transfers into Level 3 |
|
|
|
| Liabilities, Transfers out of Level 3 |
|
|
|
| Liabilities, Ending balance |
(409) |
(409) |
(187) |
|
Fixed maturity securities available for sale
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
| Beginning balance |
44,999 |
43,759 |
55,801 |
| Included in earnings |
(340) |
(333) |
11 |
| Included in other comprehensive income |
(107) |
(146) |
1,385 |
| Beginning balance |
|
|
|
| Purchases |
|
|
|
| Issuances |
|
|
|
| Sales |
|
|
|
| Other dispositions |
(697) |
(3,239) |
(2,977) |
| Transfers into Level 3 |
7,990 |
11,804 |
8,640 |
| Transfers out of Level 3 |
(53) |
(53) |
(19,101) |
| Ending balance |
51,792 |
51,792 |
43,759 |
| Net unrealized gains |
(406) |
(158) |
1,401 |
|
Equity securities
|
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
|
| Beginning balance |
1,149 |
1,123 |
1,180 |
| Included in earnings |
|
|
92 |
| Included in other comprehensive income |
60 |
86 |
51 |
| Beginning balance |
|
|
|
| Purchases |
|
|
|
| Issuances |
|
|
|
| Sales |
|
|
|
| Other dispositions |
|
|
(200) |
| Ending balance |
1,209 |
1,209 |
1,123 |
| Net unrealized gains |
$ 30 |
$ 86 |
$ 105 |