Segment Information (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Reconciliation of operating results by reportable segment

The following table presents the Company's operating results by reportable segment:

	Three Months Ended March 31,
	2020							2019
	Property & Casualty		Other		Total			Property & Casualty		Other		Total
	(Amounts in millions)
Net premiums earned	$	915.4	$	7.2	$	922.6		$	863.1	$	7.1	$	870.2
Less:
Losses and loss adjustment expenses	648.2		3.5		651.7			626.8		3.6		630.4
Underwriting expenses	229.4		3.7		233.1			212.5		3.4		215.9
Underwriting gain	37.8		—		37.8			23.8		0.1		23.9
Investment income					34.5							34.2
Net realized investment (losses) gains					(251.3		)					111.1
Other income					2.6							2.3
Interest expense					(4.3		)					(4.3		)
Pre-tax (loss) income					$	(180.7	)					$	167.2
Net (loss) income					$	(139.2	)					$	135.9

Schedule direct premiums attributable to segment

The following table presents the Company’s net premiums earned and direct premiums written by reportable segment and line of insurance business:

	Three Months Ended March 31,
	2020						2019
	Property & Casualty		Other		Total		Property & Casualty		Other		Total
	(Amounts in millions)
Private passenger automobile	$	693.9	$	—	$	693.9	$	672.6	$	—	$	672.6
Homeowners	139.5		—		139.5		119.3		—		119.3
Commercial automobile	55.2		—		55.2		49.6		—		49.6
Other	26.8		7.2		34.0		21.6		7.1		28.7
Net premiums earned	$	915.4	$	7.2	$	922.6	$	863.1	$	7.1	$	870.2
Private passenger automobile	$	710.4	$	—	$	710.4	$	705.3	$	—	$	705.3
Homeowners	147.5		—		147.5		130.9		—		130.9
Commercial automobile	61.7		—		61.7		54.4		—		54.4
Other	30.1		8.2		38.3		24.7		6.8		31.5
Direct premiums written	$	949.7	$	8.2	$	957.9	$	915.3	$	6.8	$	922.1