best time to divide and replant crocosmia

I have a very large clump of crocosmia that has finished flowering and all of the leaves have turned brown. Can I still dig these up to be divided and replanted in other borders. They flower each year in the same place and i've never done anything with them, but I was unsure if they could be moved now or if I had to wait for them to flower again. Any help is appreciated, tia

 

I would think now is a good time?