Goodwill (Tables)

3 Months Ended

Mar. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Goodwill by Reportable Segments [Text Block]

Changes in the carrying value of goodwill by reportable segment were as follows:

	U.S. dialysis		Other — Ancillary services		Consolidated
Balance at December 31, 2023	$	6,416,825	$	695,735	$	7,112,560
Acquisitions	102,082		246,987		349,069
Divestitures	(1,687)		(1,506)		(3,193)
Foreign currency and other adjustments	—		(83,220)		(83,220)
Balance at December 31, 2024	6,517,220		857,996		7,375,216
Acquisitions	5,236		(4,838)		398
Foreign currency and other adjustments	—		39,946		39,946
Balance at March 31, 2025	$	6,522,456	$	893,104	$	7,415,560
Balance at March 31, 2025:
Goodwill	$	6,522,456	$	1,039,716	$	7,562,172
Accumulated impairment charges	—		(146,612)		(146,612)
	$	6,522,456	$	893,104	$	7,415,560