ISL70419SEHVF floating metal

The ISL70419SEHVF datasheet says that the package lid is tied to the EPAD, which it says is not tied to GND or VCC. I am trying to determine the dimensions of the package lid from the datasheet, in order to determine the amount of floating metal. I see on page 22 of 23 the datasheet shows the package dimensions, but I am struggling to identify what part is the package lid. Can anyone help me?