|
Realized and Net Change in Unrealized Gains (Losses) on Investments (Detail) (Other, USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
|
Other
|
|||
| Gain (Loss) on Investments [Line Items] | |||
| Realized Gains | $ 13,468 | $ 743 | $ 948 |
| Net Change in Unrealized Gains (Losses) | (6,758) | (371) | (21,968) |
| Total realized and net change in unrealized gains (losses) | $ 6,710 | $ 372 | $ (21,020) |