XML 17 R54.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurement - Summary of Change in Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Mar. 31, 2013
Change in fair value of Level 3 liability      
Payment $ (1,600)idti_PaymentofAcquisitionRelatedContingentConsideration $ (5,130)idti_PaymentofAcquisitionRelatedContingentConsideration $ 0idti_PaymentofAcquisitionRelatedContingentConsideration
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)      
Change in fair value of Level 3 liability      
Balance as of March 30, 2014 2,140us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
6,695us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
 
Changes in fair value   575us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
 
Payment   (5,130)idti_PaymentofAcquisitionRelatedContingentConsideration
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
 
Release (540)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
   
Balance as of March 29, 2015 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
2,140us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
 
Alvand Technologies      
Change in fair value of Level 3 liability      
Payment (1,600)idti_PaymentofAcquisitionRelatedContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= idti_AlvandTechnologiesMember
(1,800)idti_PaymentofAcquisitionRelatedContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= idti_AlvandTechnologiesMember
 
Alvand Technologies | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)      
Change in fair value of Level 3 liability      
Payment $ (1,600)idti_PaymentofAcquisitionRelatedContingentConsideration
/ us-gaap_BusinessAcquisitionAxis
= idti_AlvandTechnologiesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember