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Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) (USD $)
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0 Months Ended | 3 Months Ended | ||
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Sep. 26, 2014
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Mar. 27, 2015
segment
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Sep. 18, 2014
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Sep. 17, 2014
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| Accounting Policies [Line Items] | ||||
| Number of reportable segments | 1 | |||
| Distribution to subsidiary of Exelis | $ 136,300,000 | |||
| Transition services agreement, term (or less) | 1 year | |||
| Vectrus, Inc. | ||||
| Accounting Policies [Line Items] | ||||
| Common stock, distribution basis for issued and outstanding shares | 0.0556 | |||
| Term Loan | Term Facility | ||||
| Accounting Policies [Line Items] | ||||
| Distribution to subsidiary of Exelis | 136,300,000 | |||
| Credit facility, maximum borrowing capacity | $ 140,000,000 |