Business Combinations, Asset Acquisitions, and Goodwill - Summary of Purchase Price Allocation (Details) - USD ($) $ in Thousands			3 Months Ended
	Mar. 31, 2024	Jan. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Assets:
Goodwill	$ 410,267		$ 410,267	$ 278,831
CFC
Total purchase consideration:
Cash paid		$ 90,998
Cash payable		0
Contingent consideration		7,264
Common stock issued		21,952
Consideration transferred		120,214
Assets:
Cash and cash equivalents		16,674
Investment in marketable securities		50
Receivables		5,351
Prepaid expenses and other current assets		0
Amounts due from affiliates		3,909
Land, property and equipment		0
Intangible assets		26,000
Goodwill		90,148
Restricted cash		0
Total identifiable assets acquired		142,132
Liabilities:
Accounts payable and accrued expenses		4,376
Medical liabilities		17,508
Amounts due to affiliates		0
Income taxes payable		34
Deferred tax liability		0
Noncontrolling interest		0
Total identified liabilities assumed		21,918
Total net identifiable assets acquired		$ 120,214
AHMS
Total purchase consideration:
Cash paid	0
Cash payable	63,935
Contingent consideration	0
Common stock issued	0
Consideration transferred	63,935
Assets:
Cash and cash equivalents	33,950		33,950
Investment in marketable securities	0		0
Receivables	11,847		11,847
Prepaid expenses and other current assets	36		36
Amounts due from affiliates	0		0
Land, property and equipment	0		0
Intangible assets	23,800		23,800
Goodwill	29,876		29,876
Restricted cash	300		300
Total identifiable assets acquired	99,809		99,809
Liabilities:
Accounts payable and accrued expenses	7,232		7,232
Medical liabilities	13,137		13,137
Amounts due to affiliates	7,241		7,241
Income taxes payable	1,604		1,604
Deferred tax liability	6,660		6,660
Noncontrolling interest	0		0
Total identified liabilities assumed	35,874		35,874
Total net identifiable assets acquired	63,935		63,935
Other Acquisitions
Total purchase consideration:
Cash paid	12,500
Cash payable	0
Contingent consideration	5,897
Common stock issued	0
Consideration transferred	18,397
Assets:
Cash and cash equivalents	3,515		3,515
Investment in marketable securities	30		30
Receivables	0		0
Prepaid expenses and other current assets	11		11
Amounts due from affiliates	0		0
Land, property and equipment	823		823
Intangible assets	2,703		2,703
Goodwill	12,318		12,318
Restricted cash	0		0
Total identifiable assets acquired	19,400		19,400
Liabilities:
Accounts payable and accrued expenses	250		250
Medical liabilities	0		0
Amounts due to affiliates	54		54
Income taxes payable	0		0
Deferred tax liability	271		271
Noncontrolling interest	428		428
Total identified liabilities assumed	1,003		1,003
Total net identifiable assets acquired	18,397		18,397
Total Acquisitions
Total purchase consideration:
Cash paid			103,498
Cash payable			63,935
Contingent consideration			13,161
Common stock issued			21,952
Consideration transferred			202,546
Assets:
Cash and cash equivalents	54,139		54,139
Investment in marketable securities	80		80
Receivables	17,198		17,198
Prepaid expenses and other current assets	47		47
Amounts due from affiliates	3,909		3,909
Land, property and equipment	823		823
Intangible assets	52,503		52,503
Goodwill	132,342		132,342
Restricted cash	300		300
Total identifiable assets acquired	261,341		261,341
Liabilities:
Accounts payable and accrued expenses	11,858		11,858
Medical liabilities	30,645		30,645
Amounts due to affiliates	7,295		7,295
Income taxes payable	1,638		1,638
Deferred tax liability	6,931		6,931
Noncontrolling interest	428		428
Total identified liabilities assumed	58,795		58,795
Total net identifiable assets acquired	$ 202,546		$ 202,546