I'm going to answer that generally, and then I'll ask Greg to provide some details.
Replacement of fleet is also supplemented by maintaining the current fleet in operation until we have the new icebreakers coming in. We don't consider the replacement of icebreakers coming in, like the polar, for instance, as reducing our capacity and our assets and our service.
I mentioned in our opening statement that the polar that we are building is going to be bigger and better and provide longer time service in the north.