Income Taxes Reconciliation of Expected Federal Tax Expense to Actual (Details) - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Expected tax expense (benefit)										$ 5,497	$ 5,749	$ 6,406
Change in valuation allowance										0	1	0
Foreign income tax rate differential										(5,029)	(5,260)	(9,427)
Tax-exempt interest and dividends-received deduction										(35)	(63)	(114)
Adjustment of prior year taxes										0	0	(83)
Effect of uncertain tax position									$ (43,800)	(971)	(1,185)	(43,834)
Nondeductible costs to remediate tax compliance issue										0	0	(176)
Compensation limitation under 162(m) and 280(g)										80	67	(21)
Subpart F income										1,595	2,053	2,102
PFIC QEF inclusions										570	0	0
Puerto Rico income tax exclusion										(48)	0	0
Rate differential on net operating loss carryback claim										0	0	290
Goodwill impairment										0	0	2,651
Other										78	8	5
Total federal income tax expense (benefit)	$ (1,967)	$ 1,943	$ (82)	$ 1,843	$ (2,248)	$ 1,415	$ 1,474	$ 729		$ 1,737	$ 1,370	$ (42,201)
Expected tax expense (benefit), percent										21.00%	21.00%	21.00%
Change in valuation allowance, percent										0.00%	0.00%	0.00%
Foreign income tax differential, percent										(19.20%)	(19.20%)	(30.90%)
Tax-exempt interest and dividends-received deductions, percent										(0.10%)	(0.20%)	(0.40%)
Adjustment of prior year income taxes, percent										0.00%	0.00%	(0.30%)
Effect of uncertain tax position, percent										(3.70%)	(4.30%)	(143.70%)
Effective Income Tax Rate, Nondeductible costs to remediate tax compliance issue, percent										0.00%	0.00%	(0.60%)
Compensation limitation under 162(m) and 280 (g), percent										0.30%	0.20%	(0.10%)
Subpart F Income, percent										6.10%	7.50%	6.90%
PFIC QEF inclusions, Percent										2.20%	0.00%	0.00%
Puerto Rico income tax exclusion, Percent										(0.20%)	0.00%	0.00%
Rate differential on net operating loss carryback claim, percent										0.00%	0.00%	1.00%
Goodwill impairment, percent										0.00%	0.00%	8.70%
Other reconciling items, percent										0.20%	0.00%	0.00%
Federal income tax expense, percent										6.60%	5.00%	(138.40%)