Transactions with Affiliates (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Reinsurance Transactions on Balance Sheets for Pooling Arrangement

The following table sets forth the reinsurance transactions on the Company’s balance sheets for the Pooling Arrangement between the STFC Pooled Companies and State Auto Mutual at December 31, 2016 and 2015:



($ millions)	2016			2015
Assets
Deferred policy acquisition costs:
Ceded	$	(79.1	)	$	(79.8	)
Assumed	129.8			129.1
Net assumed	$	50.7		$	49.3

Liabilities and Stockholders’ Equity
Losses and loss expenses payable:
Ceded	$	(547.1	)	$	(514.7	)
Assumed	1,178.0			1,047.1
Net assumed	$	630.9		$	532.4
Unearned premiums:
Ceded	$	(390.8	)	$	(395.3	)
Assumed	611.7			609.5
Net assumed	$	220.9		$	214.2
Pension and postretirement benefits:
Ceded	$	(114.5	)	$	(160.0	)
Assumed	74.4			104.0
Net ceded	$	(40.1	)	$	(56.0	)
Other liabilities:
Ceded	$	(42.9	)	$	(63.8	)
Assumed	53.9			55.4
Net assumed (ceded)	$	11.0		$	(8.4	)
Stockholders’ Equity
Accumulated other comprehensive income:
Ceded	$	(153.5	)	$	(162.0	)
Assumed	99.8			105.3
Net ceded	$	(53.7	)	$	(56.7	)

Schedule of Reinsurance Transactions on Income Statements for Pooling Arrangement

The following table sets forth the reinsurance transactions on the Company’s income statements for the Pooling Arrangement between the STFC Pooled Companies and State Auto Mutual for the years ended December 31, 2016, 2015 and 2014:



($ millions)	2016			2015			2014
Written premiums:
Ceded	$	(815.5	)	$	(823.4	)	$	(858.2	)
Assumed	1,293.3			1,273.5			1,194.2
Net assumed	$	477.8		$	450.1		$	336.0
Earned premiums:
Ceded	$	(819.9	)	$	(832.9	)	$	(861.7	)
Assumed	1,291.9			1,270.5			1,074.1
Net assumed	$	472.0		$	437.6		$	212.4
Losses and loss expenses incurred:
Ceded	$	(560.3	)	$	(570.9	)	$	(523.6	)
Assumed	944.1			864.2			774.4
Net assumed	$	383.8		$	293.3		$	250.8
Acquisition and operating expenses:
Ceded	(148.5		)	(183.9		)	(215.4		)
Assumed	434.3			432.5			372.3
Net assumed	$	285.8		$	248.6		$	156.9