Related-Party Transactions - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024	Dec. 31, 2023
Related Party Transaction [Line Items]
Revenue	$ 486,265,000	$ 348,209,000	$ 890,621,000	$ 685,453,000
Operating lease right-of-use assets	28,792,000		28,792,000			$ 37,396,000
Expenses payable	1,200,000		1,700,000	400,000
Investments in privately held entities	8,896,000		8,896,000			6,396,000
Operating lease liabilities	4,884,000		4,884,000			4,607,000
Third Way Health | Agreement for Future Equity Fund
Related Party Transaction [Line Items]
Investments in privately held entities	6,000,000		6,000,000			3,500,000
Risk pool settlements and incentives
Related Party Transaction [Line Items]
Revenue	18,408,000	20,121,000	35,785,000	33,583,000
LMA | Related Party
Related Party Transaction [Line Items]
Revenue		6,900,000		11,900,000
First Commonwealth Property, LLC
Related Party Transaction [Line Items]
Operating lease right-of-use assets	700,000		700,000			800,000
Operating lease liabilities	800,000		800,000			800,000
Allied Pacific Holdings Investment Management, LLC | Chief Executive Officer
Related Party Transaction [Line Items]
Operating lease right-of-use assets	800,000		800,000			14,100,000
Operating lease liabilities	800,000		800,000			14,500,000
AHMC
Related Party Transaction [Line Items]
Amount outstanding under agreement	67,400,000		67,400,000			$ 54,000,000
AHMC | Related Party | Risk pool settlements and incentives
Related Party Transaction [Line Items]
Revenue	11,000,000	15,800,000	19,100,000	28,800,000
AHMC | Arroyo Vista | Related Party
Related Party Transaction [Line Items]
Revenue	600,000	400,000	1,000,000	800,000
APC | Board [Member]
Related Party Transaction [Line Items]
Payments for repurchase of shares			0	9,500,000
APC | Sunny Village Care Center | Provider Services
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	200,000	600,000	200,000	800,000
APC | Board Members | Provider Services
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	4,900,000	9,500,000	9,600,000	18,800,000
APC | Board Members Who Are Also Officers | Provider Services
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	600,000	700,000	1,400,000	1,600,000
APC | Allied Pacific Holdings Investment Management, LLC | Taxes Associated with Excluded Assets Spin-off
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	5,300,000		5,300,000
AMG | First Commonwealth Property, LLC | Office Lease
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	38,000		100,000
AMG | Allied Pacific Holdings Investment Management, LLC | Office Lease
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	$ 800,000	800,000	$ 1,700,000	1,700,000
I Health, Inc.
Related Party Transaction [Line Items]
Equity interest (as a percent)	25.00%		25.00%		25.00%
I Health, Inc. | Related Party
Related Party Transaction [Line Items]
Incurred expenses	$ 600,000		$ 600,000
PMIOC
Related Party Transaction [Line Items]
Equity interest (as a percent)	40.00%		40.00%
PMIOC | Provider Services
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	$ 600,000	500,000	$ 1,400,000	1,100,000
Song PC
Related Party Transaction [Line Items]
Equity interest (as a percent)	25.00%		25.00%
Song PC | Provider Services
Related Party Transaction [Line Items]
Related party transaction, amount of transaction	$ 200,000	$ 200,000	$ 500,000	$ 400,000