According to their website membership is international so I would think there is no residency requirement:
Your membership is international and you can use it in any of the 12 countries and one U.S. territory where we operate (the number of clubs in each country is in parentheses): Colombia (5), Costa Rica (6), El Salvador (2), Guatemala (3), Honduras (2), Nicaragua (1), Panama (4), Aruba (1), Barbados (1), Dominican Republic (3), Jamaica (1), Trinidad and Tobago (4), U.S. Virgin Islands (1)