Summary of Significant Accounting Policies	3 Months Ended
Jun. 29, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Business. Integrated Device Technology, Inc. (IDT or the Company) designs, develops, manufactures and markets a broad range of integrated circuits for the advanced communications, computing and consumer industries. Basis of Presentation. The Company's fiscal year is the 52- or 53-week period ending on the Sunday closest to March 31. In a 52-week year, each fiscal quarter consists of 13 weeks. In a 53-week year, the additional week is usually added to the third quarter, making such quarter consist of 14 weeks. The first quarters of fiscal 2015 and fiscal 2014 were 13-week periods. Principles of Consolidation. The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated. Use of Estimates. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Significant Accounting Policies. For a description of significant accounting policies, see Note 1, Summary of Significant Accounting Policies to the consolidated financial statements included in the Company's annual report on Form 10-K for the fiscal year ended March 30, 2014. There have been no material changes to the Company's significant accounting policies since the filing of the annual report on Form 10-K. In the opinion of management, these condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for the fair presentation of the condensed consolidated financial statements, for the interim period. Recent Accounting Pronouncements. Accounting Pronouncements Recently Adopted In February 2013, the Financial Accounting Standards Board (FASB) issued guidance for the recognition, measurement, and disclosure of certain obligations resulting from joint and several liability arrangements for which the total amount is fixed. Such obligations may include debt arrangements, legal settlements, and other contractual arrangements. The guidance is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2013 and should be applied retrospectively to all prior periods presented for those obligations within the scope which existed as of the beginning of the fiscal year of adoption. The Company adopted this guidance in the first quarter of fiscal 2015 and the adoption did not have a significant impact on the Company's condensed consolidated financial statements. In March 2013, the FASB issued guidance on the accounting for the cumulative translation adjustment upon derecognition of certain subsidiaries or groups of assets within a foreign entity or of an investment in a foreign entity. The guidance is effective prospectively for fiscal years and interim periods within those fiscal years beginning after December 15, 2013. The Company adopted this guidance in the first quarter of fiscal 2015 and the adoption did not have a significant impact on the Company's condensed consolidated financial statements. In July 2013, FASB issued an Accounting Standards Update (ASU) on Income Taxes, to improve the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This guidance is expected to reduce diversity in practice and is expected to better reflect the manner in which an entity would settle at the reporting date any additional income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses, or tax credit carryforwards exists. This guidance is effective for interim and annual periods beginning after December 15, 2013, which, for the Company, is the first quarter of fiscal 2015. The Company has historically accounted for its unrecognized tax benefits in accordance with this guidance and as such, adoption of this guidance had no impact on its condensed consolidated financial statements. Accounting Pronouncements Not Yet Effective for Fiscal 2015 On May 28, 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company starting fiscal 2018. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

Summary of Significant Accounting Policies

Nature of Business. Integrated Device Technology, Inc. (IDT or the Company) designs, develops, manufactures and markets a broad range of integrated circuits for the advanced communications, computing and consumer industries.

Basis of Presentation. The Company's fiscal year is the 52- or 53-week period ending on the Sunday closest to March 31. In a 52-week year, each fiscal quarter consists of 13 weeks. In a 53-week year, the additional week is usually added to the third quarter, making such quarter consist of 14 weeks. The first quarters of fiscal 2015 and fiscal 2014 were 13-week periods.

Principles of Consolidation. The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All inter-company accounts and transactions have been eliminated.

Use of Estimates. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Significant Accounting Policies. For a description of significant accounting policies, see Note 1, Summary of Significant Accounting Policies to the consolidated financial statements included in the Company's annual report on Form 10-K for the fiscal year ended March 30, 2014. There have been no material changes to the Company's significant accounting policies since the filing of the annual report on Form 10-K.

In the opinion of management, these condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for the fair presentation of the condensed consolidated financial statements, for the interim period.

Recent Accounting Pronouncements.

Accounting Pronouncements Recently Adopted

In February 2013, the Financial Accounting Standards Board (FASB) issued guidance for the recognition, measurement, and disclosure of certain obligations resulting from joint and several liability arrangements for which the total amount is fixed. Such obligations may include debt arrangements, legal settlements, and other contractual arrangements. The guidance is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2013 and should be applied retrospectively to all prior periods presented for those obligations within the scope which existed as of the beginning of the fiscal year of adoption. The Company adopted this guidance in the first quarter of fiscal 2015 and the adoption did not have a significant impact on the Company's condensed consolidated financial statements.

In March 2013, the FASB issued guidance on the accounting for the cumulative translation adjustment upon derecognition of certain subsidiaries or groups of assets within a foreign entity or of an investment in a foreign entity. The guidance is effective prospectively for fiscal years and interim periods within those fiscal years beginning after December 15, 2013. The Company adopted this guidance in the first quarter of fiscal 2015 and the adoption did not have a significant impact on the Company's condensed consolidated financial statements.

In July 2013, FASB issued an Accounting Standards Update (ASU) on Income Taxes, to improve the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This guidance is expected to reduce diversity in practice and is expected to better reflect the manner in which an entity would settle at the reporting date any additional income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses, or tax credit carryforwards exists. This guidance is effective for interim and annual periods beginning after December 15, 2013, which, for the Company, is the first quarter of fiscal 2015. The Company has historically accounted for its unrecognized tax benefits in accordance with this guidance and as such, adoption of this guidance had no impact on its condensed consolidated financial statements.

Accounting Pronouncements Not Yet Effective for Fiscal 2015

On May 28, 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company starting fiscal 2018. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.