Significant Accounting Policies	9 Months Ended
Dec. 30, 2017
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Significant Accounting Policies The significant accounting policies used in the preparation of the Company’s consolidated financial statements are disclosed in Note 2 of the Notes to the Consolidated Financial Statements within the Form 10-K. No additional significant accounting policies have been adopted during Fiscal 2018. Recent Accounting Pronouncements There have been no accounting pronouncements adopted during Fiscal 2018 that have had a material impact on the Company's consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers", with subsequent amendments, that outline a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance (collectively hereafter referred to as the “standard”). The core principle of the standard is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expected to be entitled in exchange for those goods or services. The standard is effective for annual reporting periods (including interim periods therein) beginning after December 15, 2017 for public companies with early adoption permitted for annual reporting periods (including interim periods therein) beginning after December 15, 2016. Entities can use either of two methods: (i) retrospective to each prior period presented with the option to elect certain practical expedients as defined within the standard; or (ii) retrospective with the cumulative effect of initially applying the standard recognized at the date of initial application and providing certain additional disclosures as defined in the standard. Given the scope of work required to implement the recognition and disclosure requirements under the new standard, the Company has continued to make progress through the third quarter of Fiscal 2018. Black Box will adopt the standard under the modified retrospective transition approach, which will result in a cumulative adjustment to retained earnings at the date of initial application in the first quarter Fiscal 2019. The Company has established an implementation team that has and will continue to review 1) contract terms and existing accounting policies to determine the financial impact of the standard, 2) data availability and system reports to meet the additional disclosure requirements of the standard, and 3) the control environment and internal processes to ensure the appropriate controls are in place. As we continue to assess all potential impacts of the standard, any preliminary conclusions are subject to change.

Significant Accounting Policies

The significant accounting policies used in the preparation of the Company’s consolidated financial statements are disclosed in Note 2 of the Notes to the Consolidated Financial Statements within the Form 10-K. No additional significant accounting policies have been adopted during Fiscal 2018.

Recent Accounting Pronouncements

There have been no accounting pronouncements adopted during Fiscal 2018 that have had a material impact on the Company's consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers", with subsequent amendments, that outline a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance (collectively hereafter referred to as the “standard”). The core principle of the standard is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expected to be entitled in exchange for those goods or services. The standard is effective for annual reporting periods (including interim periods therein) beginning after December 15, 2017 for public companies with early adoption permitted for annual reporting periods (including interim periods therein) beginning after December 15, 2016. Entities can use either of two methods: (i) retrospective to each prior period presented with the option to elect certain practical expedients as defined within the standard; or (ii) retrospective with the cumulative effect of initially applying the standard recognized at the date of initial application and providing certain additional disclosures as defined in the standard.

Given the scope of work required to implement the recognition and disclosure requirements under the new standard, the Company has continued to make progress through the third quarter of Fiscal 2018. Black Box will adopt the standard under the modified retrospective transition approach, which will result in a cumulative adjustment to retained earnings at the date of initial application in the first quarter Fiscal 2019. The Company has established an implementation team that has and will continue to review 1) contract terms and existing accounting policies to determine the financial impact of the standard, 2) data availability and system reports to meet the additional disclosure requirements of the standard, and 3) the control environment and internal processes to ensure the appropriate controls are in place. As we continue to assess all potential impacts of the standard, any preliminary conclusions are subject to change.