Reconciliation of Consideration Paid and Estimated Fair Value of Assets Acquired (Parenthetical) (Detail)	Mar. 31, 2015	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013
Iconix Latin America
Business Acquisition [Line Items]
Controlling interest			50.00%
Buffalo International Unlimited Liability Corporation
Business Acquisition [Line Items]
Non-controlling interest				49.00%
Iconix China
Business Acquisition [Line Items]
Controlling interest	50.00%
Pony International, LLC.
Business Acquisition [Line Items]
Controlling interest		75.00%
Non-controlling interest		25.00%