Equity (Policies)	9 Months Ended
Oct. 31, 2020
Equity [Abstract]
Repurchase and Resale Agreements Policy	Share Repurchases- During the nine months ended October 31, 2020, we did not repurchase any Class A common shares. During the nine months ended November 2, 2019, we repurchased 7.1 million Class A common shares at a cost of $141.6 million.
Stockholders' Equity, Policy	Shares- Our Class A common shares are listed for trading under the ticker symbol "DBI" on the New York Stock Exchange. There is currently no public market for the Company's Class B common shares, but the Class B common shares can be exchanged for the Company's Class A common shares at the election of the holder on a share for share basis. Holders of Class A common shares are entitled to one vote per share and holders of Class B common shares are entitled to eight votes per share on matters submitted to shareholders for approval.

Disclosure of accounting policy for repurchase and resale agreements. This disclosure may address (a) the reasons for entering into repurchase and resale agreements, (b) how securities transferred under such agreements are classified in the entity's financial statements, (c) whether multiple agreements with the same counterparty are offset (d) the entity's accounting policy for requiring collateral or other security for such transactions, and (e) how the entity ensures that the market value of the underlying assets remains sufficient to protect the entity in the event of default by the counterparty.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 45
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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