CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ (391,347)	$ (260,101)	$ (262,803)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	28,594	24,463	20,161
Stock-based compensation expense	49,119	50,657	69,495
Impairments	36,085	3,596	0
Loss (income) from equity method investments	1,835	(14,992)	(16,489)
Distributions of earnings from equity method investments	0	3,340	0
Gain (loss) and adjustments on sales of assets, net	(14,000)	3,784	47,548
Other, net	(5,518)	887	(4,044)
Changes in operating assets and liabilities:
Receivables, net	344,585	(74,580)	(460,365)
Prepaid expense and other current assets	(65,439)	8,405	(6,120)
Other assets	(133)	6	(397)
Medical claims and related payables	(1,894)	193,941	441,500
Accounts payable and accrued expenses	(85,585)	4,635	32,111
Other liabilities	(2,065)	(1,818)	(16,796)
Net cash provided by (used in) operating activities	(105,763)	(57,777)	(156,199)
Cash flows from investing activities:
Purchase of property and equipment	(13,242)	(13,251)	(15,830)
Purchase of intangible assets	(29,866)	(28,034)	(14,985)
Investments in loans receivable and other	(2,000)	(13,733)	(19,528)
Investments in marketable securities	(60,154)	(12,006)	(114,657)
Proceeds from maturities of marketable securities and other	193,872	206,915	164,040
Net cash paid in business combination	0	0	(45,252)
Proceeds from sale of business and property, net of cash divested	0	0	2,193
Net cash provided by (used in) investing activities	88,610	139,891	(44,019)
Cash flows from financing activities:
Proceeds from (payments for) equity issuances, net	(2,994)	1,167	11,867
Common stock repurchase	0	0	(200,000)
Repayments of long-term debt	0	(3,750)	(5,000)
Net cash provided by (used in) financing activities	(2,994)	(2,583)	(193,133)
Net increase (decrease) in cash, cash equivalents and restricted cash and equivalents	(20,147)	79,531	(393,351)
Cash, cash equivalents and restricted cash and equivalents from continuing operations, beginning of year	193,860	114,329	475,912
Cash, cash equivalents and restricted cash and equivalents from discontinued operations, beginning of year	0	0	31,768
Cash, cash equivalents and restricted cash and equivalents, beginning of year	193,860	114,329	507,680
Cash, cash equivalents and restricted cash and equivalents, end of year	$ 173,713	$ 193,860	$ 114,329