Schedule II. Condensed Financial Statements of Parent Company (Condensed Statement of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income (loss)	$ 15,031	$ 80,594	$ (112,706)
Adjustments to reconcile net income to net cash provided by operating activities
Other, net	7,928	(7,637)	9,602
Cash from operating activities	(16,282)	(50,677)	154,141
Net cash provided by (used in) operating activities	(1,251)	29,917	41,435
Cash flows from investing activities
Net cash provided by (used in) investing activities	(19,171)	31,731	(92,871)
Cash flows from financing activities
Repurchase of common stock	0	(2,007)	(2,741)
Issuance of common stock	828	(421)	(71)
Net cash provided by (used in) financing activities	(15,032)	(17,492)	18,662
Net Change in Cash and Cash Equivalents	(35,454)	44,156	(32,774)
Cash and Cash Equivalents at Beginning of Year	132,104	87,948	120,722
Cash and Cash Equivalents at End of Year	96,650	132,104	87,948
United Fire Group, Inc.
Cash flows from operating activities
Net income (loss)	15,031	80,594	(112,706)
Adjustments to reconcile net income to net cash provided by operating activities
Equity in net income of subsidiary	(14,964)	(80,579)	112,769
Dividends received from subsidiary	12,000	10,000	4,000
Other, net	2,845	3,131	3,907
Cash from operating activities	(119)	(67,448)	120,676
Net cash provided by (used in) operating activities	14,912	13,146	7,970
Cash flows from investing activities
Net cash provided by (used in) investing activities	0	0	0
Cash flows from financing activities
Payment of cash dividends	(15,860)	(15,064)	(28,532)
Repurchase of common stock	0	(2,007)	(2,741)
Issuance of common stock	828	(421)	(71)
Net cash provided by (used in) financing activities	(15,032)	(17,492)	(31,344)
Net Change in Cash and Cash Equivalents	(120)	(4,346)	(23,374)
Cash and Cash Equivalents at Beginning of Year	2,158	6,504	29,878
Cash and Cash Equivalents at End of Year	$ 2,038	$ 2,158	$ 6,504