Segment reporting (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Summary of Segment Net Revenues, Segment Operating Income (Loss) and Reconciliation of Segment Income to Consolidated Income Before Income Taxes

The following is a summary of segment net revenues, segment operating margin (loss), and a reconciliation of segment operating margin to consolidated income before income taxes:

	Three months ended March 31,
	2022		2021
Segment revenues:
U.S. dialysis
Dialysis patient service revenues:
External sources	$	2,546,961	$	2,556,259
Intersegment revenues	22,159		26,944
U.S. dialysis patient service revenues	2,569,120		2,583,203
Other revenues:
External sources	5,966		6,616
Intersegment revenues	10		59
Total U.S. dialysis revenues	2,575,096		2,589,878
Other—Ancillary services
Dialysis patient service revenues	169,320		158,328
Other external sources	95,308		98,798
Intersegment revenues			4,293
Total ancillary services revenues	264,628		261,419
Total net segment revenues	2,839,724		2,851,297
Elimination of intersegment revenues	(22,169)		(31,296)
Consolidated revenues	$	2,817,555	$	2,820,001
Segment operating margin (loss):
U.S. dialysis	$	406,440	$	479,906
Other—Ancillary services	(32,305)		(11,860)
Total segment operating margin	374,135		468,046
Reconciliation of segment operating income to consolidated  income before income taxes:
Corporate administrative support	(35,827)		(25,444)
Consolidated operating income	338,308		442,602
Debt expense	(73,791)		(67,014)
Other (loss) income, net	(1,786)		1,168
Consolidated income before income taxes	$	262,731	$	376,756

Summary of Depreciation and Amortization Expense by Reportable Segment

Depreciation and amortization expense by reportable segment was as follows:

	Three months ended March 31,
	2022		2021
U.S. dialysis	$	162,019	$	155,946
Other—Ancillary services	10,925		9,755
	$	172,944	$	165,701

Summary of Expenditures for Property and Equipment by Reportable Segment

Expenditures for property and equipment by reportable segment were as follows:

	Three months ended March 31,
	2022		2021
U.S. dialysis	$	107,513	$	133,804
Other—Ancillary services	15,595		11,109
	$	123,108	$	144,913

Summary of Assets by Reportable Segment

A summary of assets by reportable segment were as follows:

	March 31, 2022		December 31, 2021
U.S. dialysis	$	15,227,817	$	15,375,000
Other—Ancillary services	1,859,193		1,746,488
Consolidated assets	$	17,087,010	$	17,121,488