Business Segments (Tables)

3 Months Ended

Mar. 31, 2018

Financial Information Of Company Operating Segments

Summary financial information about the Company's reporting segments is presented in the following tables. Income (loss) before income taxes by segment includes allocated investment income. Identifiable assets by segment are those assets used in or allocated to the operation of each segment.



	Revenues
(In thousands)	Earned Premiums		Investment Income		Other		Total (1)		Pre-Tax Income (Loss)			Net Income (Loss) to Common Stockholders
Three months ended March 31, 2018
Insurance	$	1,432,337	$	135,862	$	18,968	$	1,587,167	$	229,028		$	181,626
Reinsurance	135,071		24,650		—		159,721		14,592			11,654
Corporate, other and eliminations (2)	—		14,006		81,889		95,895		(81,094		)	(65,170		)
Net realized and unrealized gains on investments	—		—		48,464		48,464		48,464			38,286
Total	$	1,567,408	$	174,518	$	149,321	$	1,891,247	$	210,990		$	166,396
Three months ended March 31, 2017
Insurance	$	1,413,170	$	111,909	$	18,287	$	1,543,366	$	199,994		$	134,095
Reinsurance	156,872		24,778		—		181,650		4,594			3,099
Corporate, other and eliminations (2)	—		12,171		80,883		93,054		(72,639		)	(47,773		)
Net realized and unrealized gains on investments	—		—		52,348		52,348		52,348			34,026
Total	$	1,570,042	$	148,858	$	151,518	$	1,870,418	$	184,297		$	123,447

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(1) Revenues for Insurance from foreign countries for the three months ended March 31, 2018 and 2017 were $183 million and $184 million, respectively. Revenues for Reinsurance from foreign countries for the three months ended March 31, 2018 and 2017 were $56 million and $49 million, respectively.

(2) Corporate, other and eliminations represent corporate revenues and expenses that are not allocated to business segments.

Identifiable Assets By Segment

Identifiable Assets



(In thousands)	March 31, 2018		December 31, 2017
Insurance	$	19,322,526	$	19,263,193
Reinsurance	3,093,808		3,169,731
Corporate, other and eliminations	2,171,498		1,866,993
Consolidated	$	24,587,832	$	24,299,917

Net Premiums Earned By Major Line Of Business

Net premiums earned by major line of business are as follows:



	For the Three Months Ended March 31,
	For the Three Months Ended March 31,
(In thousands)	2018		2017
Insurance:
Other liability	$	464,167	$	451,830
Workers’ compensation	365,948		361,136
Short-tail lines (1)	295,105		296,790
Commercial automobile	175,199		170,571
Professional liability	131,918		132,843
Total Insurance	1,432,337		1,413,170

Reinsurance:
Casualty	90,570		94,739
Property	44,501		62,133
Total Reinsurance	135,071		156,872

Total	$	1,567,408	$	1,570,042

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(1) Short-tail lines include commercial multi-peril (non-liability), inland marine, accident and health, fidelity and surety, boiler and machinery and other lines.