Usually you receive cruise docs about 2 weeks prior to the cruise, so you still have some time. I'd give your travel agent a call at the end of this week and see if they have received them yet and if not, they can check on them. Hopefully you'll be doing the doc dance very soon, enjoy Alaska!
We received our final docs for our 6/1 Grand cruise about 4 wks out. Sometimes, they send them closer to sailing. The papers should be delivered to your TA first and then delivered to you, so give your TA a call.