Debt - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 15, 2020	Mar. 31, 2020
Line of Credit Facility [Line Items]
Interest expense	$ 797,000	$ 0
New Credit Agreement
Line of Credit Facility [Line Items]
Option to increase, maximum amount				$ 100,000,000
Outstanding balance on credit facility	0	0
New Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Interest expense	0	$ 0
Maximum borrowing capacity				50,000,000
New Credit Agreement | Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity				20,000,000
New Credit Agreement | Swing Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 5,000,000
Surplus Notes
Line of Credit Facility [Line Items]
Principal amount			$ 50,000,000
Interest expense	$ 797,000
Surplus Notes | Federated Mutual
Line of Credit Facility [Line Items]
Principal amount			35,000,000
Surplus Notes | Federated Life
Line of Credit Facility [Line Items]
Principal amount			$ 15,000,000