Reports :: Showing Date Field Differently Depending On Current Date

I have a report that displays simple date fields. One of the fields is "lease execution". On the report, I want "lease execution" to display differently depending on the date the report was run.

So:

- If the "lease execution" date is more than 120 days away from today, I want it to display as Q YYYY.
- If the "lease execution" date is between 120 and 90 days away from today, I want it to display as MM/YYYY
- If the "lease execution" date is 90 days or less away, I want it to display the normal date MM/DD/YYYY

I was thinking I would need to do DateDiff() to figure out an amount of days that's between Now() and [Lease_Execution]. Then based on that amount make the report show it differently. Pseudocode would be: if DateDiff() = 40, then display [lease_execution] as MM/DD/YYYY