Summary of Assets by Segment (Detail) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
ASSETS
Consolidated assets		$ 18,741,257	$ 18,514,875
U.S. Dialysis And Related Lab Services
ASSETS
Consolidated assets		11,438,100	11,591,507
DaVita Medical Group (DMG)
ASSETS
Consolidated assets		6,213,091	6,150,666
Other-Ancillary services and strategic initiatives
ASSETS
Consolidated assets	[1]	$ 1,090,066	$ 772,702

[1] Includes approximately $96,396 and $ 69,519 in 2016 and 2015, respectively, of net property and equipment related to the Company’s international operations.