Liability for Unpaid Claims - Schedule of Liability for Unpaid Health Claims (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Activity in the Liability for Unpaid Health Claims
Beginning balance less reinsurance recoverable	$ 532,832
Paid related to:
Beginning balance plus reinsurance recoverable	546,670	$ 532,832
Health insurance
Activity in the Liability for Unpaid Health Claims
Beginning balance	209,473	192,652
Less reinsurance recoverables	(1,521)	(2,157)
Beginning balance less reinsurance recoverable	210,994	194,809
Incurred related to:
Current year	210,420	767,076
Prior years	5,943	(10,460)
Total incurred	216,363	756,616
Paid related to:
Current year	87,639	587,473
Prior years	117,573	152,322
Total paid	205,212	739,795
Ending balance	220,624	209,473
Plus reinsurance recoverables	1,548	1,521
Beginning balance plus reinsurance recoverable	$ 222,172	$ 210,994