Transactions with Affiliates, Reinsurance Atlantic States Assumed from Pool (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reinsurance Pooling and Other Reinsurance Arrangements [Abstract]
Premiums earned	$ 578,216,997	$ 573,891,506	$ 514,172,696
Unearned premiums	577,653,130	572,958,422
Liability for losses and loss expenses	619,994,000
Affiliated Entity [Member] | Atlantic States [Member]
Reinsurance Pooling and Other Reinsurance Arrangements [Abstract]
Premiums earned	578,216,706	573,891,394	514,172,448
Losses and loss expenses	395,794,813	383,455,320	309,315,497
Unearned premiums	280,031,908	289,976,879	262,004,199
Liability for losses and loss expenses	$ 496,849,769	$ 455,564,733	$ 377,530,215