Goodwill (Tables)

3 Months Ended

Mar. 31, 2023

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, 2021	$	6,400,162	$	646,079	$	7,046,241
Acquisitions	16,750		32,297		49,047
Divestitures	(87)		(3,263)		(3,350)
Foreign currency and other adjustments	—		(15,328)		(15,328)
Balance at December 31, 2022	$	6,416,825	$	659,785	$	7,076,610
Foreign currency and other adjustments	—		13,701		13,701
Balance at March 31, 2023	$	6,416,825	$	673,486	$	7,090,311
Balance at March 31, 2023:
Goodwill	$	6,416,825	$	794,391	$	7,211,216
Accumulated impairment charges	—		(120,905)		(120,905)
	$	6,416,825	$	673,486	$	7,090,311