Haha that's exactly what I did the first 2 years with this one.
Little tip: get yourself an oil catch pan like this one, drill/punch a bunch of holes in the side, and transfer your Lillie. If it's in a shallower/wider pot it will allow the rhizomes to spread more and your plant will be much happier for it. Since moving it to the new pot I've been getting way more growth and blooms from the Lillie each season.
If you don't mind something round, check this out. The metal looks thin, but I have bought one and it is actually thick and sturdy. It's a drain pan so it's made to withstand corrosion and moisture. Finally, it is fairly big and deep. Good luck!
https://www.amazon.com/Plews-75-751-Galvanized-Utility-Drain/dp/B000G78P8G