  We study the Rokhlin dimension for actions of residually finite groups on
C*-algebras. We give a definition equivalent to the original one due to Szabo,
Wu and Zacharias. We then prove a number of permanence properties and discuss
actions on C_0(X)-algebras and commutative C*- algebras. Finally, we use a
theorem of Sierakowski to show that, for an action with finite Rokhlin
dimension, every ideal in the associated reduced crossed product C*-algebra
arises from an invariant ideal of the underlying algebra.
