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Component: (Network and Table)
Network
100700 - Disclosure - Black-Scholes Option Valuation Assumptions (Detail)
(http://www.ae.com/20170128/taxonomy/role/DisclosureBlackScholesOptionValuationAssumptionsDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000919012 (http://www.sec.gov/CIK)
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]Period [Axis]
2016-01-31 - 2017-01-28
2014-02-02 - 2015-01-31
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
 
 
Risk-free interest rates
1.30% 2
1.50% 2
Dividend yield
3.00%  
3.10%  
Volatility factors of the expected market price of the Company's common stock
35.40% 3
41.20% 3
Weighted-average expected term
P4Y4M24D 1
P4Y6M 1
1: Represents the period of time options are expected to be outstanding. The weighted average expected option terms were determined based on historical experience.
2: Based on the U.S. Treasury yield curve in effect at the time of grant with a term consistent with the expected life of our stock options.
3: Based on a combination of historical volatility of the Company’s common stock and implied volatility.