Variable Interest Entities - Schedule of Consolidated Asset and Liabilities Include VIE Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Assets
Cash and cash equivalents	$ 171,684	$ 188,231
Receivables, net	947,157	1,017,040
Prepaid expenses and other current assets, net	80,017	35,137
Property and equipment, net	26,148	28,169
Intangible assets, net	75,254	72,771
Liabilities
Medical claims and related payables	1,059,398	931,664
Accounts payable and accrued expenses	145,517	220,342
Variable Interest Entity
Assets
Cash and cash equivalents	59,378	78,650
Restricted cash equivalents	0	5,627
Receivables, net	946,571	1,015,753
Prepaid expenses and other current assets, net	33,296	17,725
Property and equipment, net	707	1,255
Intangible assets, net	54,021	49,406
Other assets, net	4,330	4,790
Liabilities
Medical claims and related payables	1,059,398	931,664
Accounts payable and accrued expenses	124,634	199,432
Other liabilities	$ 1,351	$ 2,270