Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2011

Fair Value Measurement [Abstract]

Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis Valuation Techniques

	September 30, 2011
	Level 1		Level 2		Level 3		Total
	(Amounts in thousands)
Assets
Fixed maturity securities:
U.S. government bonds and agencies	$	14,257	$	0	$	0	$	14,257
Municipal securities		0		2,290,330		0		2,290,330
Mortgage-backed securities		0		41,172		0		41,172
Corporate securities		0		77,231		0		77,231
Collateralized debt obligations		0		0		43,867		43,867
Equity securities:
Common stock:
Public utilities		24,549		0		0		24,549
Banks, trusts and insurance companies		14,736		0		0		14,736
Industrial and other		270,991		0		0		270,991
Non-redeemable preferred stock		0		11,571		0		11,571
Short-term bonds		0		11,139		0		11,139
Money market instruments		237,712		0		0		237,712
Equity contracts		6		0		0		6
Total assets at fair value	$	562,251	$	2,431,443	$	43,867	$	3,037,561
Liabilities
Equity contracts	$	625	$	0	$	0	$	625
Interest rate swap agreements		0		1,348		0		1,348
Total liabilities at fair value	$	625	$	1,348	$	0	$	1,973
	December 31, 2010
	Level 1		Level 2		Level 3		Total
	(Amounts in thousands)
Assets
Fixed maturity securities:
U.S. government bonds and agencies	$	8,805	$	0	$	0	$	8,805
Municipal securities		0		2,433,589		1,624		2,435,213
Mortgage-backed securities		0		57,367		0		57,367
Corporate securities		0		95,203		0		95,203
Collateralized debt obligations		0		0		55,692		55,692
Equity securities:
Common stock:
Public utilities		27,214		0		0		27,214
Banks, trusts and insurance companies		20,521		0		0		20,521
Industrial and other		302,103		0		0		302,103
Non-redeemable preferred stock		0		9,768		0		9,768
Short-term bonds		0		17,043		0		17,043
Money market instruments		126,328		0		0		126,328
Interest rate swap agreements		0		4,240		0		4,240
Total assets at fair value	$	484,971	$	2,617,210	$	57,316	$	3,159,497
Liabilities
Equity contracts	$	2,776	$	0	$	0	$	2,776
Interest rate swap agreements		0		3,042		0		3,042
Total liabilities at fair value	$	2,776	$	3,042	$	0	$	5,818

Schedule Of Changes In Fair Value Of Level 3 Financial Assets And Liabilities Held At Fair Value

	Three Months Ended September 30,
	2011						2010
	Municipal Securities			Collateralized Debt  Obligations			Municipal Securities			Collateralized Debt  Obligations
	(Amounts in thousands)
Beginning Balance	$	0		$	55,724		$	1,357		$	47,585
Realized (losses) gains included in earnings		0			(11,857	)		(3	)		4,859
Purchase		0			0			0			0
Sales		0			0			0			0
Issuances		0			0			0			0
Settlements		0			0			0			(578	)
Ending Balance	$	0		$	43,867		$	1,354		$	51,866
The amount of total (losses) gains for the period included in earnings attributable to assets still held at September 30	$	0		$	(11,857	)	$	(3	)	$	4,281
	Nine Months Ended September 30,
	2011						2010
	Municipal Securities			Collateralized Debt Obligations			Municipal Securities			Collateralized Debt Obligations
	(Amounts in thousands)
Beginning Balance	$	1,624		$	55,692		$	3,322		$	47,473
Realized gains (losses) included in earnings		39			(12,936	)		(378	)		9,562
Purchase		0			0			0			0
Sales		(1,663	)		0			(1,590)			0
Issuances		0			0			0			0
Settlements		0			1,111			0			(5,169	)
Ending Balance	$	0		$	43,867		$	1,354		$	51,866
The amount of total (losses) gains for the period included in earnings attributable to assets still held at September 30	$	0		$	(11,825	)	$	(353	)	$	8,983