Fair Value (Tables)

3 Months Ended

Mar. 31, 2022

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)	March 31, 2022		(Level 1)		(Level 2)		(Level 3)
Assets:
Fixed maturities, market value
U.S. Treasury securities and obligations of U.S. government agencies and corporations	$	598,326	$	-	$	598,326	$	-
Obligations of U.S. states and political subdivisions		559,188		-		559,188		-
Corporate securities		3,989,500		-		3,274,844		714,656
Asset-backed securities		3,856,965		-		2,468,274		1,388,691
Mortgage-backed securities
Commercial		542,934		-		537,044		5,890
Agency residential		1,156,593		-		1,156,593		-
Non-agency residential		3,750		-		3,750		-
Foreign government securities		648,759		-		648,759		-
Foreign corporate securities		1,455,642		-		1,439,716		15,926
Total fixed maturities, market value		12,811,657		-		10,686,494		2,125,163
Equity securities, fair value		1,731,774		1,693,098		38,676		-
Other invested assets, fair value		1,946,197		-		-		1,946,197

			Fair Value Measurement Using:
			Quoted Prices
			in Active		Significant
			Markets for		Other		Significant
			Identical		Observable		Unobservable
			Assets		Inputs		Inputs
(Dollars in thousands)	December 31, 2021		(Level 1)		(Level 2)		(Level 3)
Assets:
Fixed maturities, market value
U.S. Treasury securities and obligations of U.S. government agencies and corporations	$	662,749	$	-	$	662,749	$	-
Obligations of U.S. states and political subdivisions		586,621		-		586,621		-
Corporate securities		4,074,905		-		3,344,980		729,925
Asset-backed securities		3,466,286		-		2,215,005		1,251,281
Mortgage-backed securities
Commercial		602,894		-		602,894		-
Agency residential		1,260,678		-		1,260,678		-
Non-agency residential		4,408		-		4,408		-
Foreign government securities		691,980		-		691,980		-
Foreign corporate securities		1,509,874		-		1,493,859		16,015
Total fixed maturities, market value		12,860,395		-		10,863,174		1,997,221
Equity securities, fair value		1,757,792		1,721,762		36,030		-
Other invested assets, fair value		2,030,816		-		-		2,030,816

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

	Total Fixed Maturities, Market Value
	Three Months Ended March 31, 2022
	Corporate		Asset				Foreign
(Dollars in thousands)	Securities		Backed Securities		CMBS		Corporate		Total
Beginning balance	$	729,925	$	1,251,281	$	-	$	16,015	$	1,997,221
Total gains or (losses) (realized/unrealized)
Included in earnings		1,429		102		-		13		1,544
Included in other comprehensive income (loss)		(4,167)		(28,788)		(23)		(61)		(33,039)
Purchases, issuances and settlements		(12,531)		166,096		5,913		(41)		159,437
Transfers in and/or (out) of Level 3		-		-		-		-		-
Ending balance	$	714,656	$	1,388,691	$	5,890	$	15,926	$	2,125,163
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	$	318	$	-	$	-	$	-	$	318
(Some amounts may not reconcile due to rounding.)

	Total Fixed Maturities, Market Value
	Three Months Ended March 31, 2021
	Corporate		Asset		Foreign
(Dollars in thousands)	Securities		Backed Securities		Corporate		Total
Beginning balance	$	630,843	$	623,033	$	5,700	$	1,259,576
Total gains or (losses) (realized/unrealized)
Included in earnings		(1,788)		(4,168)		2		(5,954)
Included in other comprehensive income (loss)		2,835		(3,135)		49		(251)
Purchases, issuances and settlements		2,003		169,630		(153)		171,480
Transfers in and/or (out) of Level 3		-		-		-		-
Ending balance	$	633,893	$	785,360	$	5,598	$	1,424,851
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.)