Effect of New Accounting Standards (Details)
 9 Months Ended
Oct. 29, 2016
Accounting standards update 2016-09 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New accounting pronouncement or change in accounting principle, description In March 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting (ASU 2016-09). ASU 2016-09 will change how companies account for certain aspects of share-based payments to employees. Entities will be required to recognize the income tax effects of awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital or APIC pools will be eliminated). The guidance on employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and for forfeitures is changing. The ASU also provides a practical expedient for public companies that will allow the use of a simplified method to estimate the expected term for certain awards. The guidance is effective for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the effect that adopting this new accounting guidance will have on our financial condition, results of operations or cash flows.
Accounting standards update 2016-05 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New accounting pronouncement or change in accounting principle, description In March 2016, the FASB issued ASU 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships (a consensus of the FASB Emerging Issues Task Force) (ASU 2016-05). Under the ASU, the novation of a derivative contract (i.e., a change in the counterparty) in a hedge accounting relationship does not, in and of itself, require dedesignation of that hedge accounting relationship. The hedge accounting relationship could continue uninterrupted if all of the other hedge accounting criteria are met, including the expectation that the hedge will be highly effective when the creditworthiness of the new counterparty to the derivative contract is considered. The guidance is effective for fiscal years beginning after December 15, 2016, and interim periods therein. Early adoption is permitted. Entities may apply the guidance prospectively or on a modified retrospective basis. We are currently evaluating the effect that adopting this new accounting guidance will have on our financial condition, results of operations or cash flows.
Accounting standards update 2016-15 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New accounting pronouncement or change in accounting principle, description In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force) (ASU 2016-15). ASU 2016-15 clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. The guidance also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The guidance is effective for fiscal years beginning after December 15, 2017, and interim periods therein. Early adoption is permitted. Entities should apply the guidance retrospectively, but if it is impracticable to do so for an issue, the amendments related to that issue may be applied prospectively. We are currently evaluating the effect that adopting this new accounting guidance will have on our financial condition, results of operations or cash flows.