Property and Casualty Insurance Activity (Details 5) - USD ($)	6 Months Ended
Jan. 01, 2024	Jun. 30, 2023	Jan. 02, 2023	Jun. 30, 2022	Dec. 30, 2021
Catastrophe stub coverage for the period from October 18, 2021 through December 31, 2021					$ 5,000,000
in excess of 1					$ 5,000,000
Catastrophe [Member]
Initial loss subject to personal lines quota share treaty	$ 10,000,000	$ 10,000,000	$ 10,000,000	$ 10,000,000
Risk retained per catastrophe occurrence		8,750,000	7,400,000	7,400,000
Catastrophe stub coverage for the period from October 18, 2021 through December 31, 2021		8,750,000	7,400,000	7,400,000
in excess of 1				5,000,000
Catastrophe loss coverage in excess of quota share coverage		$ 335,000,000	$ 335,000,000	$ 490,000,000
Reinstatement premium protection		Yes	Yes	Yes
Property And Casualty Personal Insurance Product Line [Member]
Quota share treaty percent ceded	30.00%	30.00%	30.00%	30.00%
Risk retained on initial $1,000,000 of losses	$ 700,000	$ 700,000	$ 700,000	$ 700,000
Losses per occurrence subject to quota share reinsurance coverage	$ 1,000,000	$ 1,000,000	$ 1,000,000	$ 1,000,000
Expiration	Jan. 01, 2024	Jan. 01, 2024	Jan. 01, 2023	Jan. 01, 2023
Excess of loss coverage and facultative facility coverage		$ 8,400,000	$ 8,400,000	$ 8,400,000
In excess of		in excess of	in excess of	in excess of
Total reinsurance coverage per occurrence	$ 500,000	$ 8,500,000	$ 8,500,000	$ 8,500,000
Losses per occurrence subject to reinsurance coverage		$ 8,000,000	$ 9,000,000	$ 9,000,000
Expiration Date		Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2022
in excess of 1		$ 600,000	$ 600,000	$ 600,000