|
Schedule of Sales of Fixed Maturity and Equity Securities Excluding Maturities and Calls (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
|
| Investment Securities [Line Items] | ||||
| Proceeds | $ 5,378 | $ 9,714 | $ 13,994 | $ 61,255 |
| Gross realized gains | 399 | 292 | 712 | 3,944 |
| Gross realized losses | $ (44) | $ (76) | $ (76) | $ (1,666) |