Debt - Additional Information (Details) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Sep. 26, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Sep. 17, 2014
Dec. 31, 2015
Mar. 31, 2016
Sep. 30, 2015
Debt Instrument [Line Items]                
Distribution to subsidiary of Exelis $ 136,300,000 $ 136,281,000 $ 0 $ 0        
Debt financing fees   3,701,000 0 0        
Maximum allowed dividend distribution   5,000,000            
Senior Secured Credit Facilities                
Debt Instrument [Line Items]                
Credit facility, maximum borrowing capacity         215,000,000      
Covenant terms, ratio of total indebtedness to combined EBITDA   3.50            
Covenant terms, ratio of combined EBITDA to combined interest expense   4.50            
Ratio of total indebtedness to combined EBITDA   2.46            
Ratio of combined EBITDA to combined interest expense   9.38            
Interest rate   2.92%            
Debt Instrument, percentage of interest in event of default in excess of applicable rate   2.00%            
Senior Secured Credit Facilities | Minimum                
Debt Instrument [Line Items]                
Undrawn portion of revolving facility, commitment fee percentage   0.40%            
Senior Secured Credit Facilities | Maximum                
Debt Instrument [Line Items]                
Undrawn portion of revolving facility, commitment fee percentage   0.50%            
Senior Secured Credit Facilities | London Interbank Offered Rate (LIBOR) | Minimum                
Debt Instrument [Line Items]                
Spread on variable rate   2.50%            
Senior Secured Credit Facilities | London Interbank Offered Rate (LIBOR) | Maximum                
Debt Instrument [Line Items]                
Spread on variable rate   3.00%            
Term Loan                
Debt Instrument [Line Items]                
Face amount of term loan facility         140,000,000      
Facility, maturity         5 years      
Long-term Debt   137,375,000            
Term facility, amortization rate, year one         7.50%      
Term Facility, amortization rate, year two         10.00%      
Term facility, amortization rate, year three         10.00%      
Term facility, amortization rate, year four         15.00%      
Term facility, amortization rate, year five         57.50%      
Term facility, mandatory prepayment terms, percentage of net cash proceeds from incurrence of indebtedness   100.00%            
Term facility, mandatory prepayment terms, percentage of net cash proceeds of all non-ordinary course asset sales or other dispositions of property   100.00%            
Revolver                
Debt Instrument [Line Items]                
Credit facility, maximum borrowing capacity         75,000,000      
Facility, maturity         5 years      
Available borrowing capacity   60,600,000            
Letters of Credit                
Debt Instrument [Line Items]                
Credit facility, maximum borrowing capacity         35,000,000      
Number of letters of credit outstanding   6            
Letters of credit outstanding   14,400,000            
Swingline Facility                
Debt Instrument [Line Items]                
Credit facility, maximum borrowing capacity         10,000,000      
Scenario, Forecast | Senior Secured Credit Facilities                
Debt Instrument [Line Items]                
Covenant terms, ratio of total indebtedness to combined EBITDA             2.75 3.00
Scenario, Forecast | Term Loan                
Debt Instrument [Line Items]                
Term facility, mandatory prepayment terms, percentage of borrower's excess cash flow           50.00%    
Term facility, mandatory prepayment terms, percentage of borrower's excess cash flow, stepdown to 25%           25.00%    
Term facility, mandatory prepayment terms, percentage of borrower's excess cash flow, stepdown to 0%           0.00%    
Long-term debt issuance costs, net                
Debt Instrument [Line Items]                
Debt financing fees         $ 3,700,000