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Subsequent Events	3 Months Ended
Subsequent Events	May 02, 2014
Subsequent Event [Line Items]
Subsequent Events	Subsequent Events: On May 9, 2014, the Company sold a certain component of the Company's business that it had committed to dispose of in August 2013. This business was focused on technology used to detect if an individual is concealing explosive devices or other hidden weapons. See Note 2-Discontinued Operations.
Leidos, Inc.
Subsequent Event [Line Items]
Subsequent Events	Subsequent Events: On May 9, 2014, the Company sold a certain component of the Company's business that it had committed to dispose of in August 2013. This business was focused on technology used to detect if an individual is concealing explosive devices or other hidden weapons. See Note 2-Discontinued Operations.