Transactions with Affiliates (Tables)

12 Months Ended

Dec. 31, 2022

Transactions with Affiliates [Abstract]

Transactions with Affiliates

	Assumed from Old Republic						Ceded to Old Republic
Years Ended December 31:	2022		2021		2020		2022		2021		2020
Premiums earned	$	.3	$	1.5	$	3.6	$	.1	$	.2	$	.3
Commissions and fees	.1		.4		1.1		—		—		—
Losses and loss expenses	.9		1.1		2.4		.1		.5		.8
Loss and loss expense reserves	7.1		8.5		8.7		2.7		3.1		3.9
Unearned premiums	$	—	$	—	$	—	$	—	$	—	$	—