Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Apr. 03, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and note disclosures normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated financial statements and the accompanying notes are unaudited and should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended September 26, 2014 (the “2014 Annual Report”). In the opinion of management, the condensed consolidated financial statements herein include adjustments (consisting only of normal recurring adjustments) necessary for a fair statement of the Company’s financial position as of April 3, 2015 and September 26, 2014, results of operations and statements of comprehensive earnings for the three and six months ended April 3, 2015 and March 28, 2014, and cash flows for the six months ended April 3, 2015 and March 28, 2014. The results of operations for the three and six months ended April 3, 2015 are not necessarily indicative of the operating results to be expected for the full fiscal year or any future period.
Fiscal Year	Fiscal Year The fiscal years of the Company as reported are the 52- or 53- week periods ending on the Friday nearest September 30. Fiscal year 2015 is the 53-week period ending October 2, 2015, and fiscal year 2014 was the 52-week period ended September 26, 2014. The fiscal quarters ended April 3, 2015 and March 28, 2014 were both 13-week periods.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include those of VMS and its subsidiaries. Intercompany balances, transactions and stock holdings have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements or Updates Not Yet Effective In April 2015, the Financial Accounting Standards Board (“FASB”) issued an amendment to its accounting guidance related to internal use software. The amendment clarifies that the software license element of a cloud computing arrangements should be accounted for consistent with the acquisition of other software licenses. The amendment will be effective for the Company beginning in its first quarter of fiscal year 2017. Early adoption is permitted. The amendment can be adopted either prospectively or retrospectively. The Company is evaluating the impact of adopting this guidance to its consolidated financial statements. In April 2015, the FASB issued an amendment to its accounting guidance related to retirement benefits. The amendment provides a practical expedient that permits an entity with a fiscal year-end that does not coincide with a month-end to measure defined benefit plan assets and obligations using the month-end that is closest to the entity’s fiscal year-end and apply that practical expedient consistently from year to year. The amendment also provides a practical expedient that permits an entity that has a significant event in an interim period to remeasure defined benefit plan assets and obligations using the month-end that is closest to the date of the significant event. The amendment will be effective for the Company beginning in its first quarter of fiscal year 2017 and is required to be applied on a retroactive basis. Early adoption is permitted. The amendment is not expected to have a material impact to the Company’s consolidated financial statements. In March 2015, the FASB issued an amendment to its accounting guidance related to presentation of debt issuance costs. The amendment requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. The amendment will be effective for the Company beginning in its first quarter of fiscal year 2017. Early adoption is not permitted. The amendment is required to be applied on a retroactive basis. The amendment is not expected to have a material impact to the Company’s consolidated financial statements. In February 2015, the FASB issued an amendment to its accounting guidance related to consolidation. The amendment modifies the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. The amendment will be effective for the Company beginning in its first quarter of fiscal year 2017. Early adoption is permitted. The amendment permits the use of either the retrospective or cumulative effect transition method. The amendment is not expected to have a material impact to the Company’s consolidated financial statements. In June 2014, the FASB issued an amendment to its accounting guidance related to stock-based compensation. The amendment requires that a performance target that could be achieved after the requisite service period be treated as a performance condition that affects vesting, rather than a condition that affects the grant-date fair value. The new guidance will be effective for the Company beginning in its first quarter of fiscal year 2017. Early adoption is permitted. The amendment can be applied on a prospective basis to all share-based payments granted or modified on or after the effective date. Entities will also be provided an option to apply the guidance on a modified retrospective basis to existing awards. The amendment is not expected to have a material impact to the Company's consolidated financial statements. In May 2014, the FASB issued an amendment to its accounting guidance related to revenue recognition. The amendment sets forth a single, comprehensive revenue recognition model for all contracts with customers to improve comparability. The amendment requires revenue recognition to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new guidance will be effective for the Company beginning in its first quarter of fiscal year 2018. Early application is not permitted. In April 2015, the FASB proposed a one-year deferral of the amendment. If the proposal is approved, the new guidance will be effective for the Company beginning in its first quarter of fiscal year 2019, with early adoption permitted, but not before the original effective date. The amendment can be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying the update recognized at the date of the initial application along with additional disclosures. The Company is evaluating the impact of adopting this guidance to its consolidated financial statements.

Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.

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- Definition

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

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