Annual report pursuant to Section 13 and 15(d)

Fair Value Remeasurement Based on Significant Inputs Not Observable, Level 3 Measurement (Detail)

v2.4.1.9
Fair Value Remeasurement Based on Significant Inputs Not Observable, Level 3 Measurement (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair value, beginning balance $ 960us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Fair value of contingent consideration issued during the period 9,976us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues
Change in fair value 1,419us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Fair value, ending balance $ 12,355us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue