Redeemable Non-Controlling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Changes in Carrying Amount of Redeemable Non-Controlling Interests [Roll Forward]
Beginning balance			$ 174,828
Net income allocated to redeemable non-controlling interest partners	$ 3,314	$ 2,920	5,541	$ 5,640
Reduction due to separation agreement	(3,033)		(3,033)
Ending balance	184,354		184,354
Carrying Amount (Fair Value) of Redeemable Non-Controlling Interest [Abstract]
Fair value	184,354		184,354
Redeemable Non-Controlling Interest [Member]
Changes in Carrying Amount of Redeemable Non-Controlling Interests [Roll Forward]
Beginning balance	190,733	164,283	174,828	167,515
Net income allocated to redeemable non-controlling interest partners	3,314	2,920	5,541	5,640
Distributions to redeemable non-controlling interest partners	(3,867)	(4,179)	(5,967)	(6,337)
Changes in the fair value of redeemable non-controlling interest	622	2,865	2,061	2,746
Purchases of redeemable non-controlling interest	(3,550)	(2,659)	(6,327)	(8,821)
Acquired interest	0	2,138	16,901	3,893
Sales of redeemable non-controlling interest	90	2,286	472	2,925
Changes in notes receivable related to redeemable non-controlling interest	45	(2,140)	(122)	(2,047)
Reduction due to separation agreement	(3,033)	0	(3,033)	0
Ending balance	184,354	165,514	184,354	165,514
Carrying Amount (Fair Value) of Redeemable Non-Controlling Interest [Abstract]
Contractual time period has lapsed but holder's employment has not terminated	72,411	73,640	72,411	73,640
Contractual time period has not lapsed and holder's employment has not terminated	111,943	91,874	111,943	91,874
Holder's employment has terminated and contractual time period has expired	0	0	0	0
Holder's employment has terminated and contractual time period has not expired	0	0	0	0
Fair value	$ 184,354	$ 165,514	$ 184,354	$ 165,514
Therapy Practice [Member] | Minimum [Member]
Business Combination, Description [Abstract]
Business acquisition, percentage of limited partnership acquired	50.00%		50.00%
Therapy Practice [Member] | Maximum [Member]
Business Combination, Description [Abstract]
Business acquisition, percentage of limited partnership acquired	90.00%		90.00%
Therapy Practice [Member] | NewCo. [Member]
Business Combination, Description [Abstract]
Percentage of equity interest of subsidiary contributed for acquisition	100.00%		100.00%
Business acquisition, percentage of general partnership interest acquired	100.00%		100.00%
Business acquisition, consideration payable, term of note			2 years
Employment agreement renewal term			1 year
Non-Compete agreement term under condition of termination of employment of employed selling shareholder			2 years
Therapy Practice [Member] | NewCo. [Member] | Minimum [Member]
Business Combination, Description [Abstract]
Employment agreement term			3 years
Non-Compete agreement term regardless of whether the selling shareholder is employed			5 years
Therapy Practice [Member] | NewCo. [Member] | Maximum [Member]
Business Combination, Description [Abstract]
Employment agreement term			5 years
Non-Compete agreement term regardless of whether the selling shareholder is employed			6 years
ProgressiveHealth [Member] | NewCo. [Member]
Business Combination, Description [Abstract]
Percentage of equity interest of subsidiary contributed for acquisition	100.00%		100.00%
Non-Compete agreement term under condition of termination of employment of employed selling shareholder			2 years
Non-Compete agreement term regardless of whether the selling shareholder is employed			7 years
Percentage of right to sell equity interest on each of the 4th and 5th anniversaries	30.00%		30.00%
Percentage of right to sell equity interest on each of the 6th and 7th anniversaries	10.00%		10.00%