Three Months Ended

Nine Months Ended

September 30,

(in millions)

2024

2023

2024

2023

Operating revenues:

Core Commercial

$

576.6

$

557.1

$

1,727.6

$

1,658.2

Specialty

353.7

340.9

1,049.0

1,011.6

Personal Lines

644.9

620.5

1,908.5

1,815.1

Other

2.5

4.2

9.4

11.6

Total

1,577.7

1,522.7

4,694.5

4,496.5

Net realized and unrealized investment losses

(12.4

)

(6.1

)

(41.4

)

(31.8

)

Total revenues

$

1,565.3

$

1,516.6

$

4,653.1

$

4,464.7

Operating income (loss) before interest expense
and income taxes:

Core Commercial:

Underwriting income

$

14.6

$

5.3

$

88.3

$

1.0

Net investment income

42.1

38.4

124.3

114.2

Other expense

(0.8

)

(0.6

)

(2.0

)

(0.8

)

Core Commercial operating income

55.9

43.1

210.6

114.4

Specialty:

Underwriting income

52.6

52.7

113.5

119.5

Net investment income

20.9

18.0

61.7

53.6

Other expense

(0.5

)

(0.4

)

(0.8

)

(0.1

)

Specialty operating income

73.0

70.3

174.4

173.0

Personal Lines:

Underwriting loss

(6.7

)

(127.3

)

(74.4

)

(422.4

)

Net investment income

26.3

24.3

77.9

73.3

Other income

2.1

2.6

6.7

8.0

Personal Lines operating income (loss)

21.7

(100.4

)

10.2

(341.1

)

Other:

Underwriting income

—

—

—

—

Net investment income

2.5

3.5

8.0

9.4

Other expense

(2.5

)

(2.8

)

(7.5

)

(8.2

)

Other operating income

—

0.7

0.5

1.2

Operating income (loss) before interest expense 
   and income taxes

150.6

13.7

395.7

(52.5

)

Interest on debt

(8.5

)

(8.5

)

(25.6

)

(25.6

)

Operating income (loss) before income taxes

142.1

5.2

370.1

(78.1

)

Non-operating items:

Net realized and unrealized investment losses

(12.4

)

(6.1

)

(41.4

)

(31.8

)

Other non-operating

—

—

(2.4

)

0.8

Income (loss) from continuing operations before income taxes

$

129.7

$

(0.9

)

$

326.3

$

(109.1

)