Description of the Business and Summary of Significant Accounting Policies and Practices - Sale of Australia Stores and Korean Underwear Business (Details) - 12 months ended Feb. 01, 2020 - Disposal Group, Disposed of by Sale, Not Discontinued Operations ₩ in Millions, $ in Millions, $ in Millions	KRW (₩)	USD ($)	AUD ($)	USD ($)	AUD ($)
Australia retail stores
Summary of Significant Accounting Policies
Selling price related to divestiture of business				$ 4.9	$ 7.1
Gain (loss) on sale of business		$ (0.8)	$ (1.2)
Australia retail stores | Accounts receivable, net
Summary of Significant Accounting Policies
Selling price related to divestiture of business				1.2	1.8
Australia retail stores | Other assets
Summary of Significant Accounting Policies
Selling price related to divestiture of business				2.2	$ 3.3
Korean underwear business
Summary of Significant Accounting Policies
Selling price related to divestiture of business	₩ 3,030.0			$ 2.6
Gain (loss) on sale of business	₩ 130.0	$ 0.1