XML 69 R57.htm IDEA: XBRL DOCUMENT v3.4.0.3
Noncontrolling Interests Subject to Put Provisions and Other Commitments - Additional Information (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
Commitments And Contingencies Disclosure [Line Items]  
Schedule of Joint ventures to dissolve Certain consolidated joint ventures are originally contractually scheduled to dissolve after terms ranging from ten to fifty years.
Minimum  
Commitments And Contingencies Disclosure [Line Items]  
Scheduled dissolution term of joint ventures 10 years
Maximum  
Commitments And Contingencies Disclosure [Line Items]  
Scheduled dissolution term of joint ventures 50 years
Commitments to provide operating capital  
Commitments And Contingencies Disclosure [Line Items]  
Other potential commitments to provide operating capital to several dialysis centers $ 4,700