Consolidated Balance Sheets (USD $) In Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
ASSETS:
Fixed maturities - available for sale, at market value (amortized cost: 2011, $5,098,886; 2010, $5,438,359)	$ 5,299,902	$ 5,599,940
Fixed maturities - available for sale, at fair value	128,337	180,482
Equity securities - available for sale, at market value (cost: 2011, $15 2010, $15)	12	13
Equity securities - available for sale, at fair value	972,802	683,454
Short-term investments	566,111	516,885
Other invested assets (cost: 2011, $393,058; 2010, $405,401)	392,843	406,916
Other invested assets, at fair value	794,608	788,142
Cash	288,365	118,092
Total investments and cash	8,442,980	8,293,924
Accrued investment income	62,790	70,874
Premiums receivable	773,721	643,257
Reinsurance receivables - unaffiliated	685,233	670,168
Reinsurance receivables - affiliated	3,056,730	2,708,193
Funds held by reinsureds	177,553	171,179
Deferred acquisition costs	167,339	184,247
Prepaid reinsurance premiums	567,466	629,323
Deferred tax asset	150,594	183,924
Federal income taxes recoverable	147,127	142,421
Other assets	240,901	171,923
TOTAL ASSETS	14,472,434	13,869,433
LIABILITIES:
Reserve for losses and loss adjustment expenses	8,275,580	7,652,303
Unearned premium reserve	1,187,555	1,287,476
Funds held under reinsurance treaties	178,453	180,377
Losses in the course of payment	29,875	13,089
Commission reserves	32,117	37,796
Other net payable to reinsurers	556,127	467,486
Revolving credit borrowings	40,000	50,000
5.4% Senior notes due 10/15/2014	249,835	249,812
6.6% Long term notes due 05/01/2067	238,352	238,351
Junior subordinated debt securities payable	329,897	329,897
Accrued interest on debt and borrowings	4,789	4,793
Other liabilities	272,363	230,312
Total liabilities	11,394,943	10,741,692
Commitments and Contingencies (Note 6)
STOCKHOLDER'S EQUITY:
Common stock, par value: $0.01; 3,000 shares authorized; 1,000 shares issued and outstanding (2011 and 2010)
Additional paid-in capital	330,990	327,767
Accumulated other comprehensive income (loss), net of deferred income tax expense (benefit) of $107,272 at 2011 and $88,289 at 2010	199,219	163,966
Retained earnings	2,547,282	2,636,008
Total stockholder's equity	3,077,491	3,127,741
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ 14,472,434	$ 13,869,433