Transactions with Affiliates, Expense Sharing (Details) - Donegal Mutual [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Expense Sharing [Abstract]
Charges for services	$ 186,568,897	$ 153,941,121	$ 134,143,158
Infrastructure related costs allocated	5,100,000	$ 2,800,000
Proportionate share of the remaining infrastructure costs	34,300,000
Deferred costs	$ 3,400,000