v2.4.1.9
Reconciliation of Changes in Contingent Earn-Out Obligations (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Business Combinations [Abstract]  
Beginning balance $ 28,058dva_BusinessAcquisitionContingentEarnOutFairValueDisclosure
Contingent earn-out obligations associated with acquisitions 18,234dva_BusinessCombinationContingentConsiderationAcquisitions
Remeasurement of fair value (4,448)dva_BusinessCombinationContingentConsiderationAcquisitionsFairValueRemeasurementGainLoss
Payments of contingent earn-out obligations (2,715)dva_BusinessCombinationContingentConsiderationAcquisitionsEarnoutsPayments
Ending balance $ 39,129dva_BusinessAcquisitionContingentEarnOutFairValueDisclosure