Property and Casualty Insurance Activity (Details 6) - USD ($)	6 Months Ended	7 Months Ended	9 Months Ended	12 Months Ended	13 Months Ended
Dec. 30, 2020	Jun. 30, 2020	Sep. 30, 2021	Jun. 30, 2022	Dec. 30, 2020
Catastrophe [Member]
Risk retained per catastrophe occurrence		$ 5,625,000
Catastrophe loss coverage in excess of quota share coverage	$ 475,000,000	602,500,000	$ 475,000,000	$ 490,000,000
Initial loss subject to personal lines quota share treaty	$ 7,500,000	$ 7,500,000
Reinstatement premium protection	Yes	Yes	Yes	Yes
Property And Casualty Personal Insurance Product Line Member
Percent ceded					25.00%
Risk retained on initial $1,000,000 of losses	$ 750,000	$ 750,000	$ 1,000,000	$ 10,000,000
Excess of loss coverage and facultative facility coverage	8,000,000	9,000,000	8,000,000	8,000,000
In excess of	1,000,000	1,000,000	1,000,000	1,000,000
Total reinsurance coverage per occurrence	$ 8,250,000	$ 9,250,000	$ 8,000,000	$ 8,000,000
Expiration date	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2022
Losses per occurrence subject to reinsurance coverage	$ 9,000,000	$ 10,000,000	$ 9,000,000	$ 9,000,000
Risk retained per catastrophe occurrence	8,125,000		10,000,000	1,000,000
Catastrophe loss coverage in excess of quota share coverage			$ 475,000,000	$ 490,000,000
Losses per occurrence subject to quota share reinsurance coverage	1,000,000	$ 1,000,000
Initial loss subject to personal lines quota share treaty	$ 7,500,000