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Noncontrolling Interests Subject to Put Provisions and Other Commitments - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
Minimum
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Dec. 31, 2013
Maximum
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Dec. 31, 2012
Epogen
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Nov. 30, 2011
Epogen
|
Dec. 31, 2012
Epogen
Minimum
|
Nov. 30, 2011
Epogen
Minimum
|
Dec. 31, 2013
Hemodialysis Products, Supplies and Equipment
|
Dec. 31, 2012
Hemodialysis Products, Supplies and Equipment
|
Dec. 31, 2011
Hemodialysis Products, Supplies and Equipment
|
Oct. 31, 2005
Hemodialysis Products, Supplies and Equipment
|
Dec. 31, 2013
Dialysis Equipment, Parts and Supplies
|
Dec. 31, 2012
Dialysis Equipment, Parts and Supplies
|
Dec. 31, 2011
Dialysis Equipment, Parts and Supplies
|
Dec. 31, 2011
Dialysis Equipment, Parts and Supplies
Extended Expiration
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| Commitments and Contingencies Disclosure [Line Items] | ||||||||||||||||
| Other potential commitments to provide operating capital to several dialysis centers | $ 3,000 | |||||||||||||||
| Schedule of Joint ventures to dissolve | Certain consolidated joint ventures are contractually scheduled to dissolve after terms ranging from ten to fifty years. | |||||||||||||||
| Scheduled dissolution term of joint ventures | 10 years | 50 years | ||||||||||||||
| Long term purchase commitment, period | 7 years | |||||||||||||||
| Long term purchase commitment, expiration date | Dec. 31, 2013 | Dec. 31, 2018 | ||||||||||||||
| Long-term purchase commitment, percentage of quantity required | 90.00% | 90.00% | ||||||||||||||
| Long term purchase commitment, origination date | Jan. 01, 2013 | |||||||||||||||
| Purchase commitment, purchase during the period | 124,555 | 147,639 | 120,938 | 144,030 | 138,450 | 107,977 | ||||||||||
| Long-term purchase commitment, time period | In January 2010, the Company entered into an agreement with Fresenius which committed the Company to purchase a certain amount of dialysis equipment, parts and supplies from Fresenius through 2013. | |||||||||||||||
| Long term purchase commitment, expiration year | 2015 | 2013 | 2015 | |||||||||||||
| Product Supply Agreement, intangible liability initially valued as of the acquisition date | $ 68,200 | $ 68,200 | $ 162,100 | |||||||||||||
| Purchase commitment description | The Product Supply Agreement committed the Company to purchase a significant majority of its hemodialysis products, supplies and equipment at fixed prices through 2015. | |||||||||||||||