Reinsurance (Tables)

12 Months Ended

Dec. 31, 2018

Reinsurance Disclosures [Abstract]

External Reinsurance on Balance Sheets

The following table sets forth the effect of the Company’s external reinsurance on its balance sheets at December 31, 2018 and 2017, prior to the reinsurance transaction with State Auto Mutual under the Pooling Arrangement, as discussed in Note 8a:

($ millions)	2018		2017
Losses and loss expenses payable:
Direct	$	530.9	$	535.0
Assumed	22.3		9.2
Ceded	(5.5)		(3.1)
Net losses and loss expenses payable	$	547.7	$	541.1
Unearned premiums:
Direct	$	436.2	$	402.5
Assumed	35.5		21.4
Ceded	(6.6)		(6.4)
Net unearned premiums	$	465.1	$	417.5

External Reinsurance on Income Statements

The following table sets forth the effect of the Company’s external reinsurance on its income statements for the years ended December 31, 2018, 2017 and 2016, prior to the reinsurance transaction with State Auto Mutual under the Pooling Arrangement, as discussed in Note 8a:

($ millions)	2018		2017		2016
Written premiums:
Direct	$	915.1	$	835.6	$	835.4
Assumed	75.1		31.1		5.0
Ceded	(22.7)		(22.9)		(24.9)
Net written premiums	$	967.5	$	843.8	$	815.5
Earned premiums:
Direct	$	881.3	$	828.7	$	840.6
Assumed	61.0		11.0		4.9
Ceded	(22.6)		(22.6)		(25.6)
Net earned premiums	$	919.7	$	817.1	$	819.9
Losses and loss expenses incurred:
Direct	$	572.5	$	530.9	$	559.1
Assumed	48.4		10.4		3.9
Ceded	(4.9)		(2.5)		(4.4)
Net losses and loss expenses incurred	$	616.0	$	538.8	$	558.6