Balance Sheet Information (Tables)

3 Months Ended

Mar. 27, 2020

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Inventories

Inventories consisted of the following:

	March 27,		December 27,
(In millions)	2020		2019
Raw materials	$	110.9	$	99.9
Work in process		61.0		57.6
Finished goods		15.1		14.9
Total	$	187.0	$	172.4

Property, Plant and Equipment, Net

Property, plant and equipment, net, consisted of the following:

	Useful Life	March 27,			December 27,
(In millions)	(in years)	2020			2019
Land		$	4.2		$	4.8
Buildings	50		33.2			36.9
Machinery and equipment	5-10		61.7			58.1
Leasehold improvements	*		43.8			41.8
Computer equipment and software	3-10		39.0			32.1
Furniture and fixtures	5		4.4			4.4
			186.3			178.1
Accumulated depreciation			(61.9	)		(56.7	)
Construction in progress			19.0			23.9
Total		$	143.4		$	145.3