Segment Information

The Company is primarily engaged in writing personal automobile insurance and provides related property and casualty insurance products to its customers through 14 subsidiaries in 11 states, principally in California.

The Company has one reportable business segment - the Property and Casualty business segment.

The Company’s Chief Operating Decision Maker evaluates operating results based on pre-tax underwriting results which is calculated as net premiums earned less (a) losses and loss adjustment expenses and (b) underwriting expenses (policy acquisition costs and other operating expenses).

Expenses are allocated based on certain assumptions that are primarily related to premiums and losses. The Company’s net investment income, net realized investment gains or losses, other income, and interest expense are excluded in evaluating pretax underwriting profit. The Company does not allocate its assets, including investments, or income taxes in evaluating pre-tax underwriting profit.

Property and Casualty Lines

The Property and Casualty business segment offers several insurance products to the Company’s individual customers and small business customers. These insurance products are: private passenger automobile which is the Company’s primary business, and related insurance products such as homeowners, commercial automobile and commercial property. These related insurance products are primarily sold to the Company’s individual customers and small business customers, which increases retention of the Company’s private passenger automobile client base. The insurance products comprising the Property and Casualty business segment are sold through the same distribution channels, mainly through independent and 100% owned insurance agents, and go through a similar underwriting process.

Other Lines

The Other business segment represents net premiums written and earned from an operating segment that does not meet the quantitative thresholds required to be considered a reportable segment. This operating segment offers automobile mechanical protection warranties which are primarily sold through automobile dealerships and credit unions.

The following tables present the Company's operating results by reportable segment:



	Three Months Ended September 30,
	2018							2017
	Property & Casualty		Other		Total			Property & Casualty		Other		Total

	(Amounts in millions)
Net premiums earned	$	850.5	$	7.6	$	858.1		$	792.7	$	8.5	$	801.2
Less:
Losses and loss adjustment expenses	610.2		3.9		614.1			591.1		4.2		595.3
Underwriting expenses	202.8		3.3		206.1			196.7		3.9		200.6
Underwriting gain	37.5		0.4		37.9			4.9		0.4		5.3
Investment income					38.2							31.0
Net realized investment (losses) gains					(3.9		)					20.7
Other income					2.4							5.4
Interest expense					(4.3		)					(4.2		)
Pre-tax income					$	70.3						$	58.2
Net income					$	58.6						$	46.5



	Nine Months Ended September 30,
	2018							2017
	Property & Casualty		Other		Total			Property & Casualty			Other		Total

	(Amounts in millions)
Net premiums earned	$	2,476.9	$	23.3	$	2,500.2		$	2,362.4		$	26.2	$	2,388.6
Less:
Losses and loss adjustment expenses	1,840.1		11.8		1,851.9			1,777.1			13.5		1,790.6
Underwriting expenses	604.0		10.9		614.9			587.7			11.9		599.6
Underwriting gain (loss)	32.8		0.6		33.4			(2.4		)	0.8		(1.6		)
Investment income					104.5								94.1
Net realized investment (losses) gains					(48.4		)						66.3
Other income					7.1								9.7
Interest expense					(12.8		)						(10.9		)
Pre-tax income					$	83.8							$	157.6
Net income					$	76.2							$	125.1

The following tables present the Company’s net premiums earned and direct premiums written by line of insurance business:



	Three Months Ended September 30,
	2018						2017
	Property & Casualty		Other		Total		Property & Casualty		Other		Total

	(Amounts in millions)
Private passenger automobile	$	659.6	$	—	$	659.6	$	619.8	$	—	$	619.8
Homeowners	120.0		—		120.0		108.3		—		108.3
Commercial automobile	48.7		—		48.7		43.6		—		43.6
Other	22.2		7.6		29.8		21.0		8.5		29.5
Net premiums earned	$	850.5	$	7.6	$	858.1	$	792.7	$	8.5	$	801.2

Private passenger automobile	$	695.1	$	—	$	695.1	$	633.7	$	—	$	633.7
Homeowners	140.7		—		140.7		125.8		—		125.8
Commercial automobile	50.3		—		50.3		45.6		—		45.6
Other	24.5		6.9		31.4		22.9		7.1		30.0
Direct premiums written	$	910.6	$	6.9	$	917.5	$	828.0	$	7.1	$	835.1



	Nine Months Ended September 30,
	2018						2017
	Property & Casualty		Other		Total		Property & Casualty		Other		Total

	(Amounts in millions)
Private passenger automobile	$	1,932.1	$	—	$	1,932.1	$	1,850.3	$	—	$	1,850.3
Homeowners	340.5		—		340.5		322.3		—		322.3
Commercial automobile	140.3		—		140.3		127.3		—		127.3
Other	64.0		23.3		87.3		62.5		26.2		88.7
Net premiums earned	$	2,476.9	$	23.3	$	2,500.2	$	2,362.4	$	26.2	$	2,388.6

Private passenger automobile	$	2,035.1	$	—	$	2,035.1	$	1,872.8	$	—	$	1,872.8
Homeowners	394.0		—		394.0		352.3		—		352.3
Commercial automobile	149.9		—		149.9		133.7		—		133.7
Other	73.6		20.5		94.1		69.9		21.3		91.2
Direct premiums written	$	2,652.6	$	20.5	$	2,673.1	$	2,428.7	$	21.3	$	2,450.0