The ID of the company. Can be found under Account Settings -> General & Security -> Company ID.
Period
The period over which to filter the resulting incidents. Possible values: 0 - Last 24 hours, 1 - Last 7 days, 2 - Last 90 days, 3 - Last 180 days, 4 - Last 360 days, 5 - Current year to date, 6 - All time.