Stock-Based Compensation - Summary of Restricted Stock and Performance Shares (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Restricted Stock and Performance Shares
Restricted Stock Units
Outstanding, beginning balance (in shares) | shares	1,822,000
Granted (in shares) | shares	1,733,000
Vested (in shares) | shares	(357,000)
Forfeited (in shares) | shares	(216,000)
Outstanding, ending balance (in shares) | shares	2,982,000
Weighted-Average Grant-Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 22.35
Granted (in dollars per share) | $ / shares	26.36
Vested (in dollars per share) | $ / shares	23.59
Forfeited (in dollars per share) | $ / shares	24.30
Outstanding, ending balance (in dollars per share) | $ / shares	$ 24.39
Physician Partners Equity Awards | Nonemployee
Restricted Stock Units
Outstanding, beginning balance (in shares) | shares	5,460,000
Granted (in shares) | shares	2,421,000
Vested (in shares) | shares	(744,000)
Outstanding, ending balance (in shares) | shares	7,137,000
Weighted-Average Grant-Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 25.95
Granted (in dollars per share) | $ / shares	16.99
Vested (in dollars per share) | $ / shares	22.18
Outstanding, ending balance (in dollars per share) | $ / shares	$ 20.39