Inventory (Tables)

9 Months Ended

Sep. 26, 2019

Inventory Disclosure [Abstract]

Summary Of Inventories

Work-in-process inventory includes direct labor, direct material, overhead and purchases on contracts for which revenue is recognized at a point in time as well as sub-assembly parts that have not been issued to production on contracts for which revenue is recognized using the input method. For the periods ended September 26, 2019 and December 31, 2018, work-in-process inventory includes $149.0 and $151.6, respectively, of costs incurred in anticipation of specific contracts and no impairments were recorded in the period.

Product inventory, summarized in the table above, is shown net of valuation reserves of $36.3 and $55.2 as of September 26, 2019 and December 31, 2018, respectively.