Asset-backed Securities Fair Value Disclosure

No definition available.

Name:	idti_AssetBackedSecuritiesFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

+ References

No definition available.

+ Details

Name:	idti_BankDepositsFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents contingent consideration as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	idti_ContingentConsiderationFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents investments in corporate bonds as of the balance sheet date. Include bank-issued securities that are guaranteed by the Federal Deposit Insurance Corporation (FDIC).

+ References

No definition available.

+ Details

Name:	idti_CorporateBondsFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents investments in corporate commercial paper as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	idti_CorporateCommercialPaperFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

International Government Bonds Fair Value Disclosure

+ References

No definition available.

+ Details

Name:	idti_InternationalGovernmentBondsFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents investments in money market funds as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	idti_MoneyMarketFundsFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents investments in municipal bonds as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	idti_MunicipalBondsFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Payment of Acquisition Related Contingent Consideration

+ References

No definition available.

+ Details

Name:	idti_PaymentofAcquisitionRelatedContingentConsideration
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Repurchase Agreements, Fair Value Disclosure

+ References

No definition available.

+ Details

Name:	idti_RepurchaseAgreementsFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This item represents investments in US government agencies securities as of the balance sheet date. Does not include any U.S. government guaranteed bank issued paper.

+ References

No definition available.

+ Details

Name:	idti_UsGovernmentAgenciesSecuritiesFairValueDisclosure
Namespace Prefix:	idti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_AssetsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_CashCashEquivalentsAndShortTermInvestmentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Fair value of financial and nonfinancial obligations.

+ References

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=idti_AlvandTechnologiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=idti_FoxEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Fair Value Measurement - Assets and Liabilities at Fair Value (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	Apr. 30, 2012
Liabilities:
Payment	$ 1,600	$ 5,130	$ 0
Fox Enterprises
Liabilities:
Payment				3,300
Alvand Technologies
Liabilities:
Payment	1,600	1,800
Fair Value, Measurements, Recurring
Cash equivalents and short-term investments:
U.S. government treasuries and agencies securities	135,945	112,253
Money market funds	55,578	53,430
Asset-backed securities	31,830	22,332
Corporate bonds	245,675	199,806
International government bonds	1,006	3,014
Corporate commercial paper	4,999	6,246
Bank deposits	16,915	18,538
Repurchase agreements	191	46
Municipal bonds	6,044	9,210
Total assets measured at fair value	498,183	424,875
Liabilities:
Fair value of contingent consideration		2,140
Total liabilities measured at fair value		2,140
Fair Value, Measurements, Recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Cash equivalents and short-term investments:
U.S. government treasuries and agencies securities	135,945	112,253
Money market funds	55,578	53,430
Asset-backed securities	0	0
Corporate bonds	0	0
International government bonds	0	0
Corporate commercial paper	0	0
Bank deposits	0	0
Repurchase agreements	0	0
Municipal bonds	0	0
Total assets measured at fair value	191,523	165,683
Liabilities:
Fair value of contingent consideration		0
Total liabilities measured at fair value		0
Fair Value, Measurements, Recurring \| Significant Other Observable Inputs (Level 2)
Cash equivalents and short-term investments:
U.S. government treasuries and agencies securities	0	0
Money market funds	0	0
Asset-backed securities	31,830	22,332
Corporate bonds	245,675	199,806
International government bonds	1,006	3,014
Corporate commercial paper	4,999	6,246
Bank deposits	16,915	18,538
Repurchase agreements	191	46
Municipal bonds	6,044	9,210
Total assets measured at fair value	306,660	259,192
Liabilities:
Fair value of contingent consideration		0
Total liabilities measured at fair value		0
Fair Value, Measurements, Recurring \| Significant Unobservable Inputs (Level 3)
Cash equivalents and short-term investments:
U.S. government treasuries and agencies securities	0	0
Money market funds	0	0
Asset-backed securities	0	0
Corporate bonds	0	0
International government bonds	0	0
Corporate commercial paper	0	0
Bank deposits	0	0
Repurchase agreements	0	0
Municipal bonds	0	0
Total assets measured at fair value	0	0
Liabilities:
Fair value of contingent consideration		2,140
Total liabilities measured at fair value		2,140
Payment		5,130
Liability settlements	540
Fair Value, Measurements, Recurring \| Alvand Technologies \| Significant Unobservable Inputs (Level 3)
Liabilities:
Payment	1,600
Estimate of Fair Value Measurement
Liabilities:
Fair value of contingent consideration		$ 2,140