Insurance Company Subsidiary Operations - Effects of Reinsurance on Premiums Written and Earned (Details) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($)
Written
Net premiums	$ 9.9
Earned
Net premiums	10.0
WNFIC
Written
Direct premiums	162.4
Ceded premiums	(162.4)
Earned
Direct premiums	184.7
Ceded premiums	(184.7)
Quota Share Captive and Excess of Loss Layer Captive
Written
Assumed Premiums	25.8
Net premiums	9.9
Earned
Assumed Premium	16.8
Net premiums	10.0
Quota Share Captive
Written
Ceded premiums	(15.9)
Net premiums	9.0
Earned
Ceded premiums	(6.8)
Net premiums	$ 9.9

Amount of earned premiums assumed from other entities.

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