Checkboxes are not selectable

I'm getting all roles and want to pre check current roles, and allow new roles to be checked.

Currently I cannot select new roles via checkbox. There populated with current roles but that is it.

<div style="display: " class="form-group">
          <label class="col-lg-2 control-label"></label>
          <div class="col-lg-3">
            @if (count($roles) > 0)
              @foreach($roles as $role)
                <input type="checkbox" value="" name="assignees_roles[]" id="role-"
                />
                <label for="role_">{!! $role->name !!}</label>
                <a href="#" data-role="role_" class="show-permissions small">
              @endforeach
            @else
              No Roles to set
            @endif
          </div>
        </div>