Liability for Unpaid Claims - Schedule of Liability for Unpaid Health Claims (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Activity in the Liability for Unpaid Health Claims
Beginning balance less reinsurance recoverable	$ 532,832
Paid related to:
Beginning balance plus reinsurance recoverable	540,832	$ 532,832
Health insurance
Activity in the Liability for Unpaid Health Claims
Beginning balance less reinsurance recoverable	210,994	194,809	$ 184,286
Less reinsurance recoverables	(1,521)	(2,157)	(2,084)
Beginning balance	209,473	192,652	182,202
Incurred related to:
Current year	851,946	767,076	697,521
Prior years	(1,831)	(10,460)	(4,853)
Total incurred	850,115	756,616	692,668
Paid related to:
Current year	659,556	587,473	535,971
Prior years	176,028	152,322	146,247
Total paid	835,584	739,795	682,218
Ending balance	224,004	209,473	192,652
Plus reinsurance recoverables	1,233	1,521	2,157
Beginning balance plus reinsurance recoverable	$ 225,237	$ 210,994	$ 194,809