Basis of Presentation (Policies)	6 Months Ended
Jul. 29, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reclassifications	Reclassifications The Company has made certain reclassifications to prior year amounts to conform to the current period presentation within the accompanying notes to the condensed consolidated financial statements.
New Accounting Guidance	New Accounting Guidance Changes in Accounting Policies In July 2015, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance to simplify the subsequent measurement of inventories by replacing the lower of cost or market test with a lower of cost or net realizable value test. The Company adopted this guidance effective January 29, 2017 on a prospective basis. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements or related disclosures. In March 2016, the FASB issued authoritative guidance to simplify the accounting for certain aspects of share-based compensation. This guidance addresses the accounting for income tax effects at award settlement, the use of an expected forfeiture rate to estimate award cancellations prior to the vesting date and the presentation of excess tax benefits and shares surrendered for tax withholdings on the statement of cash flows. The Company adopted this guidance effective January 29, 2017. This guidance requires all income tax effects of awards (resulting from an increase or decrease in the fair value of an award from grant date to the vesting date) to be recognized in the income statement when the awards vest or are settled. This is a change from previous guidance that required such activity to be recorded in paid-in capital within stockholders’ equity. The Company adopted this provision prospectively and accordingly recorded tax shortfalls of approximately $0.1 million and $0.7 million, respectively, as an increase to the Company’s income tax expense in its condensed consolidated statement of income (loss) during the three and six months ended July 29, 2017. This resulted in a negative impact on net earnings attributable to Guess?, Inc. of approximately $0.1 million, or a minimal per share impact during the three months ended July 29, 2017 and a negative impact on net loss attributable to Guess?, Inc. of approximately $0.7 million, or an unfavorable $0.01 per share impact during the six months ended July 29, 2017. Under this guidance, excess tax benefits are also excluded from the assumed proceeds available to repurchase shares in the computation of diluted earnings (loss) per share. This was adopted prospectively and did not have a material impact on the Company’s diluted earnings (loss) per share for the three or six months ended July 29, 2017. This guidance also eliminates the requirement to estimate forfeitures, but rather provides for an election that would allow entities to account for forfeitures as they occur. The Company adopted this election beginning in the first quarter of fiscal 2018 using the modified retrospective method and recorded a cumulative adjustment to reduce retained earnings by approximately $0.3 million. This guidance also changes the presentation of excess tax benefits from a financing activity to an operating activity in the statement of cash flows. This presentation was adopted on a retrospective basis and, as a result, net cash used in operating activities improved by $0.2 million with a corresponding offset to net cash used in financing activities during the six months ended July 30, 2016. In August 2016, the FASB issued authoritative guidance related to the classification of certain cash receipts and cash payments in the statement of cash flows. The Company adopted this guidance effective January 29, 2017 on a retrospective basis. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements or related disclosures. In October 2016, the FASB issued authoritative guidance that requires an entity to include indirect interests held through related parties that are under common control on a proportionate basis when evaluating if a reporting entity is the primary beneficiary of a variable interest entity. The Company adopted this guidance effective January 29, 2017. The adoption of this guidance did not have an impact on the Company’s condensed consolidated financial statements or related disclosures. In November 2016, the FASB issued authoritative guidance related to the presentation of restricted cash in the statement of cash flows. This guidance requires that the statement of cash flows reconcile the change during the period in total cash, cash equivalents and restricted cash. The Company’s restricted cash is generally held as collateral for certain transactions. The Company adopted this guidance effective January 29, 2017 on a retrospective basis. As a result, the Company updated its condensed consolidated statements of cash flows for the six months ended July 29, 2017 and July 30, 2016 to include restricted cash with cash and cash equivalents when reconciling the beginning and end of period balances and to eliminate changes in restricted cash that have historically been included within operating and investing activities. Recently Issued Accounting Guidance In May 2014, the FASB issued a comprehensive new revenue recognition standard which will supersede previous existing revenue recognition guidance. The standard is intended to clarify the principles of recognizing revenue and create common revenue recognition guidance between GAAP and International Financial Reporting Standards. The standard also requires expanded disclosures surrounding revenue recognition. During fiscal 2017, the FASB issued additional clarification guidance on the new revenue recognition standard which also included certain scope improvements and practical expedients. The standard (including clarification guidance issued) is effective for fiscal periods beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and allows for either full retrospective or modified retrospective adoption, with early adoption permitted. The Company plans to adopt this guidance using the modified retrospective method beginning in the first quarter of fiscal 2019. The Company’s assessment efforts to date have included reviewing current revenue processes, arrangements and accounting policies to identify potential differences that could arise from the application of this standard on its consolidated financial statements and related disclosures. Based on its current review, the more significant changes that the Company has identified relate to the classification and timing of when revenue is recognized from its licensing business, loyalty programs and gift card breakage. The Company also expects a change in the timing of revenue recognized when merchandise is shipped directly to a customer, as it is expected to be based on when control is transferred to the customer upon shipment, rather than at the time the risk of loss is transferred. The Company is continuing to evaluate the financial impact of the adoption of this standard on its consolidated financial statements and related disclosures. In January 2016, the FASB issued authoritative guidance which requires equity investments not accounted for under the equity method of accounting or consolidation accounting to be measured at fair value, with subsequent changes in fair value recognized in net income. This guidance also addresses other recognition, measurement, presentation and disclosure requirements for financial instruments. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and requires a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The adoption of this guidance is not expected to have a material impact on the Company’s consolidated financial statements or related disclosures unless the Company acquires new equity investments. In February 2016, the FASB issued a comprehensive new lease standard which will supersede previous lease guidance. The standard requires a lessee to recognize assets and liabilities related to long-term leases that were classified as operating leases under previous guidance in its balance sheet. An asset would be recognized related to the right to use the underlying asset and a liability would be recognized related to the obligation to make lease payments over the term of the lease. The standard also requires expanded disclosures surrounding leases. The standard is effective for fiscal periods beginning after December 15, 2018, which will be the Company’s first quarter of fiscal 2020, and requires modified retrospective adoption, with early adoption permitted. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures, but expects there will be a material increase in its long-term assets and liabilities resulting from the adoption. In June 2016, the FASB issued authoritative guidance related to the measurement of credit losses on financial instruments. This guidance is effective for fiscal years beginning after December 15, 2019, which will be the Company’s first quarter of fiscal 2021. Early adoption is permitted for fiscal periods beginning after December 15, 2018, which will be the Company’s first quarter of fiscal 2020. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures. In October 2016, the FASB issued authoritative guidance which amends the accounting for income taxes on intra-entity transfers of assets other than inventory. This guidance requires that entities recognize the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. The income tax consequences on intra-entity transfers of inventory will continue to be deferred until the inventory has been sold to a third party. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and requires a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. Early adoption is permitted at the beginning of a fiscal year. The adoption of this guidance is not expected to have a material impact on the Company’s consolidated financial statements or related disclosures. In January 2017, the FASB issued authoritative guidance to simplify the testing for goodwill impairment by removing step two from the goodwill testing. Under current guidance, if the fair value of a reporting unit is lower than its carrying amount (step one), an entity would calculate an impairment charge by comparing the implied fair value of goodwill with its carrying amount (step two). The implied fair value of goodwill was calculated by deducting the fair value of the assets and liabilities of the respective reporting unit from the reporting unit’s fair value as determined under step one. This guidance instead provides that an impairment charge should be recognized based on the difference between a reporting unit’s fair value and its carrying value. This guidance also does not require a qualitative test to be performed on reporting units with zero or negative carrying amounts. However, entities need to disclose any reporting units with zero or negative carrying amounts that have goodwill and the amount of goodwill allocated to each. This guidance is effective for fiscal years beginning after December 15, 2019, which will be the Company’s first quarter of fiscal 2021, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of this guidance is not expected to have a material impact on the Company’s consolidated financial statements or related disclosures. In March 2017, the FASB issued authoritative guidance related to the presentation of net periodic pension cost in the income statement. This guidance requires that the service cost component of net periodic pension cost is presented in the same line as other compensation costs arising from services rendered by the employees during the period. The other components of net periodic pension cost are required to be presented in the income statement separately from the service cost component and outside of earnings from operations. This guidance also allows for the service cost component to be eligible for capitalization when applicable. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and requires retrospective adoption for the presentation of the service cost component and other components of net periodic pension cost in the income statement and prospective adoption for capitalization of the service cost component. Early adoption is permitted at the beginning of a fiscal year. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures. In May 2017, the FASB issued authoritative guidance that provides clarification on accounting for modifications in share-based payment awards. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, with early adoption permitted. The adoption of this guidance is not expected to have an impact on the Company’s consolidated financial statements or related disclosures unless there are modifications to the Company’s share-based payment awards. In August 2017, the FASB issued authoritative guidance to better align the results of hedge accounting with an entity’s risk management activities. This guidance updates the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results in the financial statements. This guidance is effective for fiscal years beginning after December 15, 2018, which will be the Company’s first quarter of fiscal 2020, and requires a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption, with early adoption permitted. The updated presentation and disclosure guidance is required only on a prospective basis. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.

New Accounting Guidance

Changes in Accounting Policies

In July 2015, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance to simplify the subsequent measurement of inventories by replacing the lower of cost or market test with a lower of cost or net realizable value test. The Company adopted this guidance effective January 29, 2017 on a prospective basis. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements or related disclosures.

In March 2016, the FASB issued authoritative guidance to simplify the accounting for certain aspects of share-based compensation. This guidance addresses the accounting for income tax effects at award settlement, the use of an expected forfeiture rate to estimate award cancellations prior to the vesting date and the presentation of excess tax benefits and shares surrendered for tax withholdings on the statement of cash flows. The Company adopted this guidance effective January 29, 2017. This guidance requires all income tax effects of awards (resulting from an increase or decrease in the fair value of an award from grant date to the vesting date) to be recognized in the income statement when the awards vest or are settled. This is a change from previous guidance that required such activity to be recorded in paid-in capital within stockholders’ equity. The Company adopted this provision prospectively and accordingly recorded tax shortfalls of approximately $0.1 million and $0.7 million, respectively, as an increase to the Company’s income tax expense in its condensed consolidated statement of income (loss) during the three and six months ended July 29, 2017. This resulted in a negative impact on net earnings attributable to Guess?, Inc. of approximately $0.1 million, or a minimal per share impact during the three months ended July 29, 2017 and a negative impact on net loss attributable to Guess?, Inc. of approximately $0.7 million, or an unfavorable $0.01 per share impact during the six months ended July 29, 2017. Under this guidance, excess tax benefits are also excluded from the assumed proceeds available to repurchase shares in the computation of diluted earnings (loss) per share. This was adopted prospectively and did not have a material impact on the Company’s diluted earnings (loss) per share for the three or six months ended July 29, 2017. This guidance also eliminates the requirement to estimate forfeitures, but rather provides for an election that would allow entities to account for forfeitures as they occur. The Company adopted this election beginning in the first quarter of fiscal 2018 using the modified retrospective method and recorded a cumulative adjustment to reduce retained earnings by approximately $0.3 million. This guidance also changes the presentation of excess tax benefits from a financing activity to an operating activity in the statement of cash flows. This presentation was adopted on a retrospective basis and, as a result, net cash used in operating activities improved by $0.2 million with a corresponding offset to net cash used in financing activities during the six months ended July 30, 2016.

In August 2016, the FASB issued authoritative guidance related to the classification of certain cash receipts and cash payments in the statement of cash flows. The Company adopted this guidance effective January 29, 2017 on a retrospective basis. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements or related disclosures.

In October 2016, the FASB issued authoritative guidance that requires an entity to include indirect interests held through related parties that are under common control on a proportionate basis when evaluating if a reporting entity is the primary beneficiary of a variable interest entity. The Company adopted this guidance effective January 29, 2017. The adoption of this guidance did not have an impact on the Company’s condensed consolidated financial statements or related disclosures.

In November 2016, the FASB issued authoritative guidance related to the presentation of restricted cash in the statement of cash flows. This guidance requires that the statement of cash flows reconcile the change during the period in total cash, cash equivalents and restricted cash. The Company’s restricted cash is generally held as collateral for certain transactions. The Company adopted this guidance effective January 29, 2017 on a retrospective basis. As a result, the Company updated its condensed consolidated statements of cash flows for the six months ended July 29, 2017 and July 30, 2016 to include restricted cash with cash and cash equivalents when reconciling the beginning and end of period balances and to eliminate changes in restricted cash that have historically been included within operating and investing activities.

Recently Issued Accounting Guidance

In May 2014, the FASB issued a comprehensive new revenue recognition standard which will supersede previous existing revenue recognition guidance. The standard is intended to clarify the principles of recognizing revenue and create common revenue recognition guidance between GAAP and International Financial Reporting Standards. The standard also requires expanded disclosures surrounding revenue recognition. During fiscal 2017, the FASB issued additional clarification guidance on the new revenue recognition standard which also included certain scope improvements and practical expedients. The standard (including clarification guidance issued) is effective for fiscal periods beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and allows for either full retrospective or modified retrospective adoption, with early adoption permitted. The Company plans to adopt this guidance using the modified retrospective method beginning in the first quarter of fiscal 2019. The Company’s assessment efforts to date have included reviewing current revenue processes, arrangements and accounting policies to identify potential differences that could arise from the application of this standard on its consolidated financial statements and related disclosures. Based on its current review, the more significant changes that the Company has identified relate to the classification and timing of when revenue is recognized from its licensing business, loyalty programs and gift card breakage. The Company also expects a change in the timing of revenue recognized when merchandise is shipped directly to a customer, as it is expected to be based on when control is transferred to the customer upon shipment, rather than at the time the risk of loss is transferred. The Company is continuing to evaluate the financial impact of the adoption of this standard on its consolidated financial statements and related disclosures.

In January 2016, the FASB issued authoritative guidance which requires equity investments not accounted for under the equity method of accounting or consolidation accounting to be measured at fair value, with subsequent changes in fair value recognized in net income. This guidance also addresses other recognition, measurement, presentation and disclosure requirements for financial instruments. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and requires a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The adoption of this guidance is not expected to have a material impact on the Company’s consolidated financial statements or related disclosures unless the Company acquires new equity investments.

In February 2016, the FASB issued a comprehensive new lease standard which will supersede previous lease guidance. The standard requires a lessee to recognize assets and liabilities related to long-term leases that were classified as operating leases under previous guidance in its balance sheet. An asset would be recognized related to the right to use the underlying asset and a liability would be recognized related to the obligation to make lease payments over the term of the lease. The standard also requires expanded disclosures surrounding leases. The standard is effective for fiscal periods beginning after December 15, 2018, which will be the Company’s first quarter of fiscal 2020, and requires modified retrospective adoption, with early adoption permitted. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures, but expects there will be a material increase in its long-term assets and liabilities resulting from the adoption.

In June 2016, the FASB issued authoritative guidance related to the measurement of credit losses on financial instruments. This guidance is effective for fiscal years beginning after December 15, 2019, which will be the Company’s first quarter of fiscal 2021. Early adoption is permitted for fiscal periods beginning after December 15, 2018, which will be the Company’s first quarter of fiscal 2020. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.

In October 2016, the FASB issued authoritative guidance which amends the accounting for income taxes on intra-entity transfers of assets other than inventory. This guidance requires that entities recognize the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. The income tax consequences on intra-entity transfers of inventory will continue to be deferred until the inventory has been sold to a third party. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and requires a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. Early adoption is permitted at the beginning of a fiscal year. The adoption of this guidance is not expected to have a material impact on the Company’s consolidated financial statements or related disclosures.

In January 2017, the FASB issued authoritative guidance to simplify the testing for goodwill impairment by removing step two from the goodwill testing. Under current guidance, if the fair value of a reporting unit is lower than its carrying amount (step one), an entity would calculate an impairment charge by comparing the implied fair value of goodwill with its carrying amount (step two). The implied fair value of goodwill was calculated by deducting the fair value of the assets and liabilities of the respective reporting unit from the reporting unit’s fair value as determined under step one. This guidance instead provides that an impairment charge should be recognized based on the difference between a reporting unit’s fair value and its carrying value. This guidance also does not require a qualitative test to be performed on reporting units with zero or negative carrying amounts. However, entities need to disclose any reporting units with zero or negative carrying amounts that have goodwill and the amount of goodwill allocated to each. This guidance is effective for fiscal years beginning after December 15, 2019, which will be the Company’s first quarter of fiscal 2021, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of this guidance is not expected to have a material impact on the Company’s consolidated financial statements or related disclosures.

In March 2017, the FASB issued authoritative guidance related to the presentation of net periodic pension cost in the income statement. This guidance requires that the service cost component of net periodic pension cost is presented in the same line as other compensation costs arising from services rendered by the employees during the period. The other components of net periodic pension cost are required to be presented in the income statement separately from the service cost component and outside of earnings from operations. This guidance also allows for the service cost component to be eligible for capitalization when applicable. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, and requires retrospective adoption for the presentation of the service cost component and other components of net periodic pension cost in the income statement and prospective adoption for capitalization of the service cost component. Early adoption is permitted at the beginning of a fiscal year. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.

In May 2017, the FASB issued authoritative guidance that provides clarification on accounting for modifications in share-based payment awards. This guidance is effective for fiscal years beginning after December 15, 2017, which will be the Company’s first quarter of fiscal 2019, with early adoption permitted. The adoption of this guidance is not expected to have an impact on the Company’s consolidated financial statements or related disclosures unless there are modifications to the Company’s share-based payment awards.

In August 2017, the FASB issued authoritative guidance to better align the results of hedge accounting with an entity’s risk management activities. This guidance updates the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results in the financial statements. This guidance is effective for fiscal years beginning after December 15, 2018, which will be the Company’s first quarter of fiscal 2020, and requires a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption, with early adoption permitted. The updated presentation and disclosure guidance is required only on a prospective basis. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements and related disclosures.