Investments (Tables)

6 Months Ended

Jun. 30, 2014

Investment [Abstract]

Fixed Maturity & Equity Securities Available For Sale

		Cost or		Gross		Gross
		amortized		unrealized		unrealized
		cost		gain		loss		Fair value
June 30, 2014
U.S. government and government agency securities		$	84,479	$	1,354	$	(206)	$	85,627
Fixed maturity securities of states, municipalities
	and political subdivisions		905,732		60,882		(909)		965,705
Special purpose revenue bonds of states, municipalities
	and political subdivisions		2,263,181		121,364		(7,582)		2,376,963
Corporate securities			1,151,993		51,846		(4,128)		1,199,711
Residential mortgage-backed securities			753,516		19,881		(8,863)		764,534
Commercial mortgage-backed securities			530,075		20,941		(3,899)		547,117
Asset-backed securities			304,866		622		(1,092)		304,396
Foreign government securities			84,611		4,630		(103)		89,138
	Total fixed maturity securities	$	6,078,453	$	281,520	$	(26,782)	$	6,333,191
Equity securities		$	394,685	$	59,130	$	(5,130)	$	448,685

December 31, 2013
U.S. government and government agency securities		$	91,047	$	2,157	$	(495)	$	92,709
Fixed maturity securities of states, municipalities
	and political subdivisions		941,580		50,885		(5,979)		986,486
Special purpose revenue bonds of states, municipalities
	and political subdivisions		2,240,412		71,541		(46,758)		2,265,195
Corporate securities			1,195,387		40,860		(11,009)		1,225,238
Residential mortgage-backed securities			622,766		15,289		(19,936)		618,119
Commercial mortgage-backed securities			502,069		16,155		(13,336)		504,888
Asset-backed securities			183,660		319		(1,587)		182,392
Foreign government securities			144,566		3,237		(357)		147,446
	Total fixed maturity securities	$	5,921,487	$	200,443	$	(99,457)	$	6,022,473
Equity securities		$	464,388	$	58,842	$	(5,764)	$	517,466

Gross unrealized losses and fair value of all available for sale fixed maturity securities loss that were in a continuous loss position

				Less than 12 months				12 months or more				Total
						Unrealized				Unrealized				Unrealized
				Fair value		losses		Fair value		losses		Fair value		losses
June 30, 2014
Fixed maturity securities
	U.S. government and government agency
		securities		$	5,838	$	(6)	$	11,410	$	(200)	$	17,248	$	(206)
	Fixed maturity securities of states,
		municipalities and political subdivisions			6,015		(34)		38,173		(875)		44,188		(909)
	Special purpose revenue bonds of states,
		municipalities and political subdivisions			51,330		(200)		327,557		(7,382)		378,887		(7,582)
	Corporate securities				73,935		(366)		105,399		(3,762)		179,334		(4,128)
	Residential mortgage-backed securities				58,198		(272)		259,170		(8,591)		317,368		(8,863)
	Commercial mortgage-backed securities				-		-		150,806		(3,899)		150,806		(3,899)
	Asset-backed securities				115,769		(927)		7,080		(165)		122,849		(1,092)
	Foreign government securities				19,363		(55)		7,193		(48)		26,556		(103)
Equity securities					63,229		(4,599)		6,952		(531)		70,181		(5,130)
			Total	$	393,677	$	(6,459)	$	913,740	$	(25,453)	$	1,307,417	$	(31,912)

December 31, 2013
Fixed maturity securities
	U.S. government and government agency
		securities		$	23,717	$	(495)	$	-	$	-	$	23,717	$	(495)
	Fixed maturity securities of states,
		municipalities and political subdivisions			136,160		(5,277)		8,997		(702)		145,157		(5,979)
	Special purpose revenue bonds of states,
		municipalities and political subdivisions			684,560		(35,832)		83,228		(10,926)		767,788		(46,758)
	Corporate securities				277,853		(8,202)		35,437		(2,807)		313,290		(11,009)
	Residential mortgage-backed securities				306,874		(15,861)		31,687		(4,075)		338,561		(19,936)
	Commercial mortgage-backed securities				203,347		(12,611)		4,915		(725)		208,262		(13,336)
	Asset-backed securities				126,922		(1,587)		-		-		126,922		(1,587)
	Foreign government securities				78,182		(357)		-		-		78,182		(357)
Equity securities					75,620		(5,437)		7,016		(327)		82,636		(5,764)
			Total	$	1,913,235	$	(85,659)	$	171,280	$	(19,562)	$	2,084,515	$	(105,221)

Amortized cost and fair value of fixed maturity securities investments classified by contractual maturity date

		Cost or amortized cost		Fair value
Due in 1 year or less		$	192,394	$	195,936
Due after 1 year through 5 years			1,012,738		1,064,207
Due after 5 years through 10 years			1,366,848		1,450,529
Due after 10 years through 15 years			942,481		992,274
Due after 15 years			975,535		1,014,198
	Securities with contractual maturities		4,489,996		4,717,144
Mortgage-backed and asset-backed securities			1,588,457		1,616,047
	Total fixed maturity securities	$	6,078,453	$	6,333,191

Realized pretax gains (losses) on the sale of investments

			Six months ended June 30,				Three months ended June 30,
			2014		2013		2014		2013
Gains
	Fixed maturity securities		$	6,150	$	4,139	$	4,135	$	635
	Equity securities			25,863		5,989		1,425		4,649
	Other investments			-		5,345		-		817
		Total gains		32,013		15,473		5,560		6,101
Losses
	Fixed maturity securities			(3,688)		(994)		(650)		(306)
	Equity securities			(3,174)		(1,286)		(5)		(1,172)
		Total losses		(6,862)		(2,280)		(655)		(1,478)
Net
	Fixed maturity securities			2,462		3,145		3,485		329
	Equity securities			22,689		4,703		1,420		3,477
	Other investments			-		5,345		-		817
		Net realized investment gain	$	25,151	$	13,193	$	4,905	$	4,623