Statutory Financial Information of Insurance Subsidiaries (Net income (loss) Capital and Surplus (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Repwest [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	$ 34,963	$ 33,314	$ 22,898
Audited statutory capital and surplus	294,515	266,875	227,380
ARCOA [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	2,319	(752)	2,438
Audited statutory capital and surplus	13,340	14,697	15,928
Oxford [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	(771)	23,217	6,296
Audited statutory capital and surplus	227,667	230,202	218,301
CFLIC [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	3,637	6,019	8,082
Audited statutory capital and surplus	20,591	17,098	25,980
NAI [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	1,017	1,874	2,127
Audited statutory capital and surplus	$ 8,906	$ 7,961	$ 13,980