Condensed consolidating financial statements - Condensed Consolidating Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 306,322	$ 161,625	$ 531,551	$ 661,910
Changes in operating assets and liabilities and non-cash items included in net income			393,024	353,147
Net cash provided by operating activities			924,575	1,015,057
Cash flows from investing activities:
Additions of property and equipment	(241,534)	(184,405)	(473,977)	(398,940)
Acquisitions			(89,465)	(619,839)
Proceeds from asset and business sales			116,241	70,236
Proceeds (purchases) from investment sales and other items, net			23,137	96,936
Net cash used in investing activities			(424,064)	(851,607)
Cash flows from financing activities:
Long-term debt and related financing costs, net			573,981	(64,032)
Intercompany borrowing (payments)			0	0
Other items			(879,890)	(301,146)
Net cash used in financing activities			(305,909)	(365,178)
Effect of exchange rate changes on cash, cash equivalents and restricted cash			(3,473)	4,192
Net decrease in cash, cash equivalents and restricted cash from continuing operations			191,129	(197,536)
Cash, cash equivalents and restricted cash of continuing operations at beginning of the year			518,920	683,463
Cash, cash equivalents and restricted cash of continuing operations at end of the period	480,148	453,207	480,148	453,207
Consolidating adjustments
Cash flows from operating activities:
Net income	(428,691)	(181,457)	(636,303)	(738,574)
Changes in operating assets and liabilities and non-cash items included in net income			636,303	738,574
Net cash provided by operating activities			0	0
Cash flows from investing activities:
Additions of property and equipment			0	0
Acquisitions			0	0
Proceeds from asset and business sales			0	0
Proceeds (purchases) from investment sales and other items, net			0	0
Net cash used in investing activities			0	0
Cash flows from financing activities:
Long-term debt and related financing costs, net			0	0
Intercompany borrowing (payments)			0	0
Other items			0	0
Net cash used in financing activities			0	0
Effect of exchange rate changes on cash, cash equivalents and restricted cash			0	0
Net decrease in cash, cash equivalents and restricted cash from continuing operations			0	0
Cash, cash equivalents and restricted cash of continuing operations at beginning of the year			0	0
Cash, cash equivalents and restricted cash of continuing operations at end of the period	0	0	0	0
DaVita Inc. \| Reportable Legal Entities
Cash flows from operating activities:
Net income	267,276	127,001	445,962	574,698
Changes in operating assets and liabilities and non-cash items included in net income			(361,991)	(429,399)
Net cash provided by operating activities			83,971	145,299
Cash flows from investing activities:
Additions of property and equipment			(77,169)	(50,966)
Acquisitions			0
Proceeds from asset and business sales			0	0
Proceeds (purchases) from investment sales and other items, net			32,415	49,036
Net cash used in investing activities			(44,754)	(1,930)
Cash flows from financing activities:
Long-term debt and related financing costs, net			584,500	(54,992)
Intercompany borrowing (payments)			225,216	(39,814)
Other items			(804,245)	(223,511)
Net cash used in financing activities			5,471	(318,317)
Effect of exchange rate changes on cash, cash equivalents and restricted cash			0	0
Net decrease in cash, cash equivalents and restricted cash from continuing operations			44,688	(174,948)
Cash, cash equivalents and restricted cash of continuing operations at beginning of the year			150,307	549,921
Cash, cash equivalents and restricted cash of continuing operations at end of the period	194,995	374,973	194,995	374,973
Guarantor subsidiaries \| Reportable Legal Entities
Cash flows from operating activities:
Net income	236,335	95,908	377,452	490,409
Changes in operating assets and liabilities and non-cash items included in net income			26,502	37,851
Net cash provided by operating activities			403,954	528,260
Cash flows from investing activities:
Additions of property and equipment			(258,471)	(182,494)
Acquisitions			(8,195)	(538,450)
Proceeds from asset and business sales			28,546	70,127
Proceeds (purchases) from investment sales and other items, net			(8,257)	(2,933)
Net cash used in investing activities			(246,377)	(653,750)
Cash flows from financing activities:
Long-term debt and related financing costs, net			(5,429)	(6,893)
Intercompany borrowing (payments)			(130,553)	117,661
Other items			(13,208)	(1,432)
Net cash used in financing activities			(149,190)	109,336
Effect of exchange rate changes on cash, cash equivalents and restricted cash			0	0
Net decrease in cash, cash equivalents and restricted cash from continuing operations			8,387	(16,154)
Cash, cash equivalents and restricted cash of continuing operations at beginning of the year			9,384	8,687
Cash, cash equivalents and restricted cash of continuing operations at end of the period	11,367	8,727	11,367	8,727
Non- Guarantor subsidiaries \| Reportable Legal Entities
Cash flows from operating activities:
Net income	231,402	120,173	344,440	335,377
Changes in operating assets and liabilities and non-cash items included in net income			92,210	6,121
Net cash provided by operating activities			436,650	341,498
Cash flows from investing activities:
Additions of property and equipment			(138,337)	(165,480)
Acquisitions			(81,270)	(81,389)
Proceeds from asset and business sales			87,695	109
Proceeds (purchases) from investment sales and other items, net			(1,021)	50,833
Net cash used in investing activities			(132,933)	(195,927)
Cash flows from financing activities:
Long-term debt and related financing costs, net			(5,090)	(2,147)
Intercompany borrowing (payments)			(94,663)	(77,847)
Other items			(62,437)	(76,203)
Net cash used in financing activities			(162,190)	(156,197)
Effect of exchange rate changes on cash, cash equivalents and restricted cash			(3,473)	4,192
Net decrease in cash, cash equivalents and restricted cash from continuing operations			138,054	(6,434)
Cash, cash equivalents and restricted cash of continuing operations at beginning of the year			359,229	124,855
Cash, cash equivalents and restricted cash of continuing operations at end of the period	$ 273,786	$ 69,507	273,786	69,507
Discontinued Operations
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			229,901	32,720
Discontinued Operations \| Consolidating adjustments
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			0	0
Discontinued Operations \| DaVita Inc. \| Reportable Legal Entities
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			0	0
Discontinued Operations \| Guarantor subsidiaries \| Reportable Legal Entities
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			6,404	(16,194)
Discontinued Operations \| Non- Guarantor subsidiaries \| Reportable Legal Entities
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			223,497	48,914
Continuing Operations
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			(38,772)	(230,256)
Continuing Operations \| Consolidating adjustments
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			0	0
Continuing Operations \| DaVita Inc. \| Reportable Legal Entities
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			44,688	(174,948)
Continuing Operations \| Guarantor subsidiaries \| Reportable Legal Entities
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			1,983	40
Continuing Operations \| Non- Guarantor subsidiaries \| Reportable Legal Entities
Cash flows from financing activities:
Net decrease in cash, cash equivalents and restricted cash from continuing operations			$ (85,443)	$ (55,348)

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