There are about 5 exhibits (all the same size) indoors. I think the big cats may rotate to the decent outdoor exhibits. The only species exclusively indoors are the Eurasian Lynx and serval. Pallas cats, Red Panda, snow leopard, and puma have only outdoor exhibits. Amur Tigers and Lions have access to nice grottoes with glass viewing and indoor exhibits at the same time.
The animals are rotated between exhibits frequently - the Amur Leopard was outside on 7/30 and no indoor cage had a sign for one. The outdoor exhibits at Kovler Lion House aren't particularly bad and certainly better than the outdoor ones. In my most recent visit, the only indoor-exclusive animals were a Jaguar that could access two indoor exhibits and Serval that could access two or three. The animals could both probably use more space but it seems the zoo is scaling back it's cat collection further and trying to give the animals in there extra room to compensate.
