Fair Value (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value [Abstract]

Fair Value Measurement Levels For All Assets, Recorded At Fair And Market Value

			Fair Value Measurement Using:
			Quoted Prices
			in Active		Significant
			Markets for		Other		Significant
			Identical		Observable		Unobservable
			Assets		Inputs		Inputs
(Dollars in thousands)	December 31, 2012		(Level 1)		(Level 2)		(Level 3)
Assets:
Fixed maturities, market value
U.S. Treasury securities and obligations of
U.S. government agencies and corporations	$	78,190	$	-	$	78,190	$	-
Obligations of U.S. States and political subdivisions		1,291,963		-		1,291,963		-
Corporate securities		1,564,852		-		1,564,852		-
Asset-backed securities		46,487		-		41,638		4,849
Mortgage-backed securities
Commercial		52,624		-		52,624		-
Agency residential		683,722		-		654,324		29,398
Non-agency residential		2,329		-		2,324		5
Foreign government securities		780,003		-		780,003		-
Foreign corporate securities		1,031,240		-		1,019,819		11,421
Total fixed maturities, market value		5,531,410		-		5,485,737		45,673
Fixed maturities, fair value		41,470		-		41,470		-
Equity securities, market value		13		13		-		-
Equity securities, fair value		1,199,848		1,059,288		140,560		-
Other invested assets, fair value		1,068,711		1,068,711		-		-

			Fair Value Measurement Using:
			Quoted Prices
			in Active		Significant
			Markets for		Other		Significant
			Identical		Observable		Unobservable
			Assets		Inputs		Inputs
(Dollars in thousands)	December 31, 2011		(Level 1)		(Level 2)		(Level 3)
Assets:
Fixed maturities, market value
U.S. Treasury securities and obligations of
U.S. government agencies and corporations	$	79,539	$	-	$	79,539	$	-
Obligations of U.S. States and political subdivisions		1,660,905		-		1,660,905		-
Corporate securities		1,228,235		-		1,228,235		-
Asset-backed securities		45,103		-		29,057		16,046
Mortgage-backed securities
Commercial		47,874		-		47,874		-
Agency residential		543,393		-		543,393		-
Non-agency residential		24,289		-		24,282		7
Foreign government securities		788,649		-		788,649		-
Foreign corporate securities		689,041		-		686,505		2,536
Total fixed maturities, market value		5,107,028		-		5,088,439		18,589
Fixed maturities, fair value		113,606		-		113,606		-
Equity securities, market value		10		10		-		-
Equity securities, fair value		1,207,053		1,090,959		116,094		-
Other invested assets, fair value		817,352		817,352		-		-

Activity Under Level 3, Fair Value Measurements Using Significant Unobservable Inputs By Asset Type

	December 31, 2012															December 31, 2011
	Asset-backed			Foreign			Non-agency			Agency						Asset-backed			Foreign			Non-agency
(Dollars in thousands)	Securities			Corporate			RMBS			RMBS			Total			Securities			Corporate			RMBS			Total
Beginning balance	$	16,046		$	2,536		$	7		$	-		$	18,589		$	961		$	3,635		$	458		$	5,054
Total gains or (losses) (realized/unrealized)
Included in earnings		114			(33	)		3			(3	)		81			194			(7	)		11			198
Included in other comprehensive income (loss)		696			144			(1	)		(164	)		675			(659	)		(66	)		54			(671	)
Purchases, issuances and settlements		4,411			18,057			(4	)		29,565			52,029			15,550			2,609			(168	)		17,991
Transfers in and/or (out) of Level 3		(16,418	)		(9,283	)		-			-			(25,701	)		-			(3,635	)		(348	)		(3,983	)
Ending balance	$	4,849		$	11,421		$	5		$	29,398		$	45,673		$	16,046		$	2,536		$	7		$	18,589
The amount of total gains or losses for the period included
in earnings (or changes in net assets) attributable to the
change in unrealized gains or losses relating to assets
still held at the reporting date	$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-
(Some amounts may not reconcile due to rounding.)