Transactions with Affiliates (Tables)

12 Months Ended

Dec. 31, 2020

Transactions with Affiliates [Abstract]

Transactions with Affiliates

	Assumed from Old Republic						Ceded to Old Republic
Years Ended December 31:	2020		2019		2018		2020		2019		2018
Premiums earned	$	3.6	$	3.2	$	2.3	$	.3	$	.4	$	.4
Commissions and fees	1.1		1.0		.7		—		—		—
Losses and loss expenses	2.4		(.5)		(2.3)		.8		(.2)		(.5)
Loss and loss expense reserves	8.7		10.5		11.9		3.9		3.4		4.0
Unearned premiums	$	—	$	—	$	—	$	—	$	—	$	—