Accumulated Other Comprehensive Income (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
AOCI [Roll Forward]
Beginning of period balance		$ 538,771,000
End of period balance	$ 290,006,000	290,006,000
Accumulated other comprehensive income
AOCI [Roll Forward]
Beginning of period balance	20,000	284,000
Other comprehensive income (loss)	138,000	(126,000)
End of period balance	158,000	158,000
Tax on other comprehensive income (loss)	0
Net unrealized investment gains (losses):
AOCI [Roll Forward]
Beginning of period balance	(262,000)	(145,000)
Other comprehensive income (loss)	178,000	22,000
Amounts reclassified from accumulated other comprehensive income	0	39,000
Other comprehensive income (loss)	178,000	61,000
End of period balance	(84,000)	(84,000)
Foreign currency translation adjustments:
AOCI [Roll Forward]
Beginning of period balance	282,000	429,000
Other comprehensive income (loss)	(40,000)	(187,000)
End of period balance	$ 242,000	$ 242,000