Up up and away

This orchid was bought with half a dozen flowers on it about a year and a half ago since then nothing until now. I repotted it and a stem started to grow and grow and grow, we nearly ended up putting baubbles on it for christmas it grew that tall. It has grown that tall that we nearly had to move it off the window sill because it ran out of room. A couple of days ago the first bud popped open and now there are twentysix.