Shareholders' Equity (Details)
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Sep. 18, 2014
Class of Stock [Line Items]        
Common stock, shares issued (in shares) 10,484,974 10,484,974 10,484,974  
Common stock, shares authorized (in shares) 100,000,000   100,000,000  
Preferred stock, shares authorized (in shares) 10,000,000   10,000,000  
Common stock, shares outstanding (in shares) 10,484,974   10,484,974  
Preferred stock, shares issued (in shares) 0   0  
Preferred stock, shares outstanding (in shares) 0   0  
Vectrus, Inc.        
Class of Stock [Line Items]        
Common stock, distribution basis for issued and outstanding shares       0.0556
Exelis, Inc.        
Class of Stock [Line Items]        
Common stock, shares issued (in shares) 10,474,268      
2014 Omnibus Plan        
Class of Stock [Line Items]        
Maximum number of shares of Company's common stock authorized for issuance (in shares) 2,625,000      
Shares available 1,744,854