|
Summary of Expenditures for Property and Equipment by Segment (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Segment Reporting Information [Line Items] | |||
| Expenditures for property and equipment | $ 641,330 | $ 617,597 | $ 550,146 |
| U.S. dialysis and related lab services | |||
| Segment Reporting Information [Line Items] | |||
| Expenditures for property and equipment | 560,610 | 554,345 | 524,180 |
| HealthCare Partners (HCP) | |||
| Segment Reporting Information [Line Items] | |||
| Expenditures for property and equipment | 27,885 | 31,582 | 7,464 |
| Other-Ancillary services and strategic initiatives | |||
| Segment Reporting Information [Line Items] | |||
| Expenditures for property and equipment | $ 52,835 | $ 31,670 | $ 18,502 |