|
Results of Operations Related to Reinsurance Agreements (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Jun. 30, 2012
|
Jun. 30, 2011
|
|
| Related Party Transaction [Line Items] | ||||
| Change in unearned premium - ceded | $ (57,595) | $ (127,399) | $ (103,348) | $ (161,080) |
| Incurred loss and loss adjustment expense - ceded | 211,787 | 170,008 | 411,716 | 298,704 |
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Related Party Transactions
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| Related Party Transaction [Line Items] | ||||
| Premium written - ceded | (196,380) | (213,919) | (387,281) | (340,641) |
| Change in unearned premium - ceded | 26,378 | 77,227 | 50,961 | 90,013 |
| Earned premium - ceded | (170,002) | (136,692) | (336,320) | (250,628) |
| Ceding commission on premium written | 50,858 | 44,160 | 105,269 | 83,885 |
| Ceding commission - deferred | (6,308) | (9,796) | (14,445) | (13,712) |
| Ceding commission - earned | 44,550 | 34,364 | 90,824 | 70,173 |
| Incurred loss and loss adjustment expense - ceded | $ 125,970 | $ 98,957 | $ 248,780 | $ 181,064 |