Schedule II - Condensed Financial Information of the Registrant Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Condensed Statements of Cash Flows
Net income	$ 99,255	$ 70,734	$ 18,875
Adjustments to reconcile net income to net cash provided by operating activities:
Earnings from consolidated subsidiaries	(4,025)	(4,654)	(5,521)
Changes in assets and liabilities:
Other assets	1,586	13,559	(2,128)
Accounts payable and accrued liabilities	3,096	13,200	(9,341)
Net cash provided by operating activities	194,498	128,688	52,114
Contributed capital		(2,065)	(2,112)
Net cash (used for) provided by investing activities	(125,706)	(54,541)	24,269
Dividends paid	(53,865)	(53,325)	(53,291)
Net cash used for financing activities	(53,865)	(53,325)	(63,531)
Net (decrease) increase in cash and cash equivalents	14,927	20,822	12,852
Cash and cash equivalents at beginning of year	58,974	38,152	25,300
Cash and cash equivalents at end of period	73,901	58,974	38,152
Supplemental disclosure of cash flow information:
Interest	1,435	510	811
Registrant
Condensed Statements of Cash Flows
Net income	99,255	70,734	18,875
Adjustments to reconcile net income to net cash provided by operating activities:
Earnings from consolidated subsidiaries	(102,489)	(72,756)	(20,985)
Dividends received from consolidated subsidiaries	51,993	51,123	56,329
Amortization of restricted stock expense	4,830	4,454	4,467
Changes in assets and liabilities:
Intercompany receivable / payable	(106)	247	197
Other assets			9
Accounts payable and accrued liabilities	382	(477)	(361)
Net cash provided by operating activities	53,865	53,325	58,531
Contributed capital	(30,000)
Net cash (used for) provided by investing activities	(30,000)
Dividends paid	(53,865)	(53,325)	(53,291)
Proceeds from Citizens loan	50,000
Acquisition of treasury stock	(20,000)		(5,240)
Net cash used for financing activities	(23,865)	(53,325)	(58,531)
Supplemental disclosure of cash flow information:
Interest	$ 1,324	$ 60	$ 75