CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income (loss)	$ (106,864)	$ (406,787)	$ (60,052)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	13,772	14,670	14,099
Stock-based compensation expense	28,381	292,394	6,688
Loss on debt extinguishment	0	1,590	0
Loss (income) from equity method investments	(10,720)	6,766	(514)
Deferred income taxes and uncertain tax positions	532	(3,231)	(2,809)
Release of indemnification assets	553	1,705	3,475
(Gain) loss on sale of assets, net	0	473	20,401
Distributions of earnings from equity method investments	0	174	0
Other non-cash items	2,973	58	(162)
Changes in operating assets and liabilities:
Receivables, net	(204,167)	(149,041)	(59,381)
Prepaid expense and other current assets	(16,620)	(3,916)	(5,085)
Other assets	(205)	3,931	(1,977)
Medical claims and related payables	107,713	76,339	42,383
Accounts payable and accrued expenses	65,736	19,360	24,922
Other liabilities	(11,892)	(1,698)	5,610
Net cash provided by (used in) operating activities	(130,808)	(148,159)	(53,204)
Cash flows from investing activities:
Purchase of property and equipment, net	(15,426)	(6,564)	(1,775)
Purchase of intangible assets, net	(17,235)	(6,862)	(575)
Investments in loans receivable and other	(6,510)	(82,831)	(3,847)
Investments in marketable securities	(458,265)	0	0
Proceeds from maturities and sales of marketable securities and other	52,548	7,095	2,058
Proceeds from sale of business and property, net of cash divested	500	(1,344)	26,205
Net cash provided by (used in) investing activities	(444,388)	(90,506)	22,066
Cash flows from financing activities:
Proceeds from initial public offering	0	1,170,942	0
Proceeds from equity issuances, net	33,056	18,086	34,404
Repurchase of shares, net	0	0	(6,742)
Proceeds from the issuance of long-term debt	0	100,000	0
Repayments of long-term borrowings and other	(5,000)	(119,899)	(3,041)
Equity and debt issuance costs and other	0	(14,739)	0
Net cash provided by (used in) financing activities	28,056	1,154,390	24,621
Net increase (decrease) in cash, cash equivalents and restricted cash and equivalents	(547,140)	915,725	(6,517)
Cash, cash equivalents and restricted cash and equivalents from continuing operations, beginning of year	1,054,820	135,178	139,152
Cash, cash equivalents and restricted cash and equivalents from discontinued operations, beginning of year	0	3,917	6,460
Cash, cash equivalents and restricted cash and equivalents, beginning of year	1,054,820	139,095	145,612
Cash, cash equivalents and restricted cash and equivalents from continuing operations, end of year	507,680	1,054,820	135,178
Cash, cash equivalents and restricted cash and equivalents from discontinued operations, end of year	0	0	3,917
Cash, cash equivalents and restricted cash and equivalents, end of year	$ 507,680	$ 1,054,820	$ 139,095