CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Total revenues	$ 196.2	$ 194.2
Total costs	144.3	143.2
Gross profit	51.9	51.0
Selling, general and administrative expenses	43.3	37.9
Merger and acquisition expenses	0.3	0.2
Research and development expenses	9.2	8.0
Restructuring expenses and other	0.3	0.0
Operating income (loss)	(1.2)	4.9
Other expense:
Interest expense, net	(5.9)	(5.9)
Loss on extinguishment of debt	(13.0)	0.0
Other income, net	0.1	0.2
Total other expense, net	(18.8)	(5.7)
Loss from continuing operations before income taxes	(20.0)	(0.8)
Benefit for income taxes from continuing operations	(4.3)	(2.7)
Income (loss) from continuing operations	(15.7)	1.9
Loss from discontinued operations before income taxes	(0.3)	0.0
Income tax benefit	0.1	0.0
Loss from discontinued operations	(0.2)	0.0
Net income (loss)	(15.9)	1.9
Less: Net income attributable to noncontrolling interest	0.0	0.0
Net income (loss) attributable to Kratos	$ (15.9)	$ 1.9
Basic income (loss) per common share attributable to Kratos:
Income (loss) from continuing operations (in dollars per share)	$ (0.12)	$ 0.02
Loss from discontinued operations (in dollars per share)	0	0
Net income (loss) per common share (in dollars per share)	(0.12)	0.02
Diluted income (loss) per common share attributable to Kratos:
Income (loss) from continuing operations (in dollars per share)	(0.12)	0.01
Loss from discontinued operations (in dollars per share)	0	0
Net income (loss) per common share (in dollars per share)	$ (0.12)	$ 0.01
Weighted average common shares outstanding:
Basic (in shares)	125.9	124.1
Diluted (in shares)	125.9	127.7
Service revenues
Total revenues	$ 67.9	$ 57.3
Total costs	49.9	42.5
Product sales
Total revenues	128.3	136.9
Total costs	$ 94.4	$ 100.7