Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Revenues, operating income (loss) and assets disclosed below provided by the Company’s reportable segments for the years ended December 31, 2017, December 25, 2016, and December 27, 2015, are as follows (in millions):

	2017			2016			2015
Revenues:
Kratos Government Solutions
Service revenues	$	196.5		$	221.0		$	209.5
Product sales	283.8			244.8			236.6
Total Kratos Government Solutions	480.3			465.8			446.1
Public Safety & Security
Service revenues	149.9			127.1			144.7
Product sales	—			—			—
Total Public Safety & Security	149.9			127.1			144.7
Unmanned Systems
Service revenues	—			—			—
Product sales	121.7			75.8			66.3
Total Unmanned Systems	121.7			75.8			66.3
Total revenues	$	751.9		$	668.7		$	657.1
Depreciation and amortization:
Kratos Government Solutions	$	14.3		$	14.9		$	18.2
Public Safety & Security	0.4			0.5			0.6
Unmanned Systems	7.8			7.4			6.7
Total depreciation and amortization	$	22.5		$	22.8		$	25.5
Operating income (loss) from continuing operations:
Kratos Government Solutions	$	1.7		$	17.3		$	16.1
Public Safety & Security	3.8			(3.0		)	2.6
Unmanned Systems	(3.0		)	(27.7		)	(16.2		)
Corporate activities	(8.3		)	(5.2		)	(7.0		)
Total operating loss from continuing operations	$	(5.8	)	$	(18.6	)	$	(4.5	)

Reportable segment assets are as follows (in millions):

	December 31, 2017		December 25, 2016		December 27, 2015
Assets:
Kratos Government Solutions	$	597.9	$	609.8	$	606.8
Unmanned Systems	201.9		172.1		162.0
Public Safety & Security	97.4		92.0		96.8
Corporate activities	126.8		74.7		37.7
Total assets	$	1,024.0	$	948.6	$	903.3