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Goodwill and Intangible Assets, Net - Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,044,016		$ 1,044,016		$ 640,510
Accumulated Amortization	266,348		266,348		197,726
Net Carrying Value	777,668		777,668		$ 442,784
Amortization of intangible assets	23,800	$ 9,500	$ 68,900	$ 24,300
Corporate trade name
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life			1 year 3 months 18 days		12 years 8 months 12 days
Gross Carrying Amount	51,965		$ 51,965		$ 43,600
Accumulated Amortization	24,786		24,786		11,726
Net Carrying Value	27,179		$ 27,179		$ 31,874
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life			14 years 8 months 12 days		15 years 9 months 18 days
Gross Carrying Amount	810,119		$ 810,119		$ 465,019
Accumulated Amortization	127,473		127,473		92,760
Net Carrying Value	682,646		$ 682,646		$ 372,259
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life			3 years		2 years 8 months 12 days
Gross Carrying Amount	162,522		$ 162,522		$ 111,822
Accumulated Amortization	97,817		97,817		80,255
Net Carrying Value	64,705		$ 64,705		$ 31,567
Below market lease, net
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life			0 years		3 months 18 days
Gross Carrying Amount	1,218		$ 1,218		$ 1,218
Accumulated Amortization	1,218		1,218		1,151
Net Carrying Value	0		$ 0		$ 67
Provider network contracts
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life			7 months 6 days		1 year 3 months 18 days
Gross Carrying Amount	18,192		$ 18,192		$ 18,851
Accumulated Amortization	15,054		15,054		11,834
Net Carrying Value	$ 3,138		$ 3,138		$ 7,017

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