FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2012

FAIR VALUE MEASUREMENTS

Schedule of assets measured at fair value on recurring basis

	As of March 31, 2012
	Fair Value Measurements Using
	Quoted Prices in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
($ in 000s)	Identical Assets		Inputs		Inputs
Description	(Level 1)		(Level 2)		(Level 3)		Total
Trading securities
Mortgage-backed	$	—	$	—	$	—	$	—
ABS/CMO*	—		8		—		8
U.S. Government	—		—		—		—
Total trading securities	$	—	$	8	$	—	$	8
Available-for-sale securities
U.S. Agencies	$	—	$	73,431	$	—	$	73,431
Corporates	—		520,400		—		520,400
Mortgage-backed	—		267,650		—		267,650
ABS/CMO*	—		74,396		—		74,396
Non-U.S. govt. & agency	—		8,698		—		8,698
U.S. Government	—		16,074		—		16,074
States, political subdivisions and revenues	—		290,802		—		290,802
Equities	406,399		—		—		406,399
Total available-for-sale securities	$	406,399	$	1,251,451	$	—	$	1,657,850
Total	$	406,399	$	1,251,459	$	—	$	1,657,858

*Asset-backed & collateralized mortgage obligations

	As of December 31, 2011
	Fair Value Measurements Using
	Quoted Prices in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
($ in 000s)	Identical Assets		Inputs		Inputs
Description	(Level 1)		(Level 2)		(Level 3)		Total
Trading securities
Corporates	$	—	$	—	$	—	$	—
Mortgage-backed	—		7		—		7
ABS/CMO*	—		—		—		—
U.S. Government	—		—		—		—
Total trading securities	$	—	$	7	$	—	$	7
Available-for-sale securities
U.S. Agencies	$	—	$	113,819	$	—	$	113,819
Corporates	—		467,100		—		467,100
Mortgage-backed	—		248,986		—		248,986
ABS/CMO*	—		56,953		—		56,953
Non-U.S. govt. & agency	—		6,697		—		6,697
U.S. Government	—		16,172		—		16,172
States, political subdivisions and revenues	—		236,590		—		236,590
Equities	388,689		—		—		388,689
Total available-for-sale securities	$	388,689	$	1,146,317	$	—	$	1,535,006
Total	$	388,689	$	1,146,324	$	—	$	1,535,013

*Asset-backed & collateralized mortgage obligations