How to get the type of route path in Ember

If I have in the router map:

this.resource('detail', { path: '/detail/:type' }, function() {
    ...
});

And I retrive the currentPanth in my Ember Application code:

currentPath: '',
ApplicationController : Ember.Controller.extend({
    updateCurrentPath: function() {
        App.set('currentPath', this.get('currentPath'));
        console.log('currentPath',App.currentPath);
    }.observes('currentPath') 
}),

When I navigate in my app, I get the route names by console, but when It is "detail" I get "detail.index". How can I get the type?