Sometimes they do add temporary tanks. [Here's a picture][1] of what Hawaiian Airlines had to do to get their fleet of 717's over the Pacific because they did not have the range.

I don't have the answer to your question specifically, but I would guess they either add temporary tanks and go from [SBNT-GUCY][2] which is not much further than max-range, or take the long haul through the US and Europe.

Relevant Links:

http://crankyflier.com/2012/08/30/how-do-airlines-deliver-airplanes-long-distances-ask-cranky/
http://www.airliners.net/aviation-forums/general_aviation/read.main/1159006/


  [1]: http://www.airliners.net/photo/0148884/M/
  [2]: http://www.gcmap.com/mapui?P=sbnt-cky&R=2900km@sbnt%0D%0A&MS=wls&DU=km