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Equity Method Investments (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 26, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 346,400	$ 320,900
Revenue from contracted services and management fees to related parties		5,452,830	5,187,105	$ 4,825,977
Accounts receivable from related parties, current		864,207	821,385
Exchange for equity interest, asset value	$ 45,800
Equity method investment, distribution transferred	$ 23,300
Related Parties
Schedule of Equity Method Investments [Line Items]
Revenue from contracted services and management fees to related parties		455,200	430,300	$ 402,800
Accounts receivable from related parties, current		25,600	17,800
Accounts receivable from related parties, noncurrent		2,400	2,200
Liabilities to related parties		$ 57,900	$ 59,000
BIR JV, LLP
Schedule of Equity Method Investments [Line Items]
Percentage of ownership		49.00%
OHRH, LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership		49.00%
GlobalRehab—Scottsdale, LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership		49.00%
ES Rehabilitation, LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership		49.00%
BHSM Rehabilitation, LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership		49.00%
RSH Property Ventures, LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership		50.00%

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