CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2024	Oct. 01, 2023	Sep. 29, 2024	Oct. 01, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss) from consolidated operations	$ 3.2	$ 3.0	$ 12.4	$ (3.2)
Change in unrealized cash flow hedge (net of taxes of $0.9 million and $0.4 million for the three and nine month period ended September 29, 2024 and $0.5 million and $1.1 million for the three and nine month period ended October 1, 2023)	(2.6)	1.4	(1.3)	3.2
Change in cumulative translation adjustment	1.4	(1.8)	(0.1)	0.1
Comprehensive income from consolidated operations	2.0	2.6	11.0	0.1
Less: Comprehensive income attributable to noncontrolling interest	0.0	4.6	0.0	8.1
Comprehensive income (loss) attributable to Kratos	$ 2.0	$ (2.0)	$ 11.0	$ (8.0)