Insurance Company Subsidiary Operations - Effects of Reinsurance on Premiums Written and Earned (Details) $ in Millions	6 Months Ended
Jun. 30, 2022 USD ($)
Written
Net premiums	$ 27.3
Earned
Net premiums	6.4
WNFIC
Written
Direct premiums	356.1
Ceded premiums	(356.1)
Earned
Direct premiums	377.8
Ceded premiums	(377.8)
Captive
Written
Assumed Premiums	46.5
Ceded premiums	(19.2)
Net premiums	27.3
Earned
Assumed Premium	10.7
Ceded premiums	(4.3)
Net premiums	$ 6.4

Amount of earned premiums assumed from other entities.

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