XML 77 R65.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Debt - Additional Information (Details)
12 Months Ended
Nov. 15, 2017
USD ($)
Dec. 31, 2019
USD ($)
letters_of_credit
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Debt Instrument [Line Items]        
Credit facility, additional available borrowings $ 100,000,000.0      
Accordion feature additional amount 100,000,000      
Payments of debt issuance costs   $ 0 $ 0 $ 1,844,000
Amortization expense   $ 404,000 426,000 1,464,000
Letters of credit        
Debt Instrument [Line Items]        
Credit facility, additional available borrowings 25,000,000      
Number of letters of credit outstanding | letters_of_credit   4    
Letters of credit outstanding   $ 3,000,000    
Senior secured credit facilities        
Debt Instrument [Line Items]        
Credit facility, additional available borrowings 200,000,000      
Covenant terms, ratio of total indebtedness to combined EBITDA   3.00    
Covenant terms, maximum debt to EBITDA ratio, 12 months following purchase   3.25    
Covenant terms, ratio of combined EBITDA to combined interest expense   4.50    
Ratio of total indebtedness to combined EBITDA   0.97    
Ratio of combined EBITDA to combined interest expense   11.82    
Interest rate   3.80%    
Senior secured credit facilities | Minimum        
Debt Instrument [Line Items]        
Undrawn portion of revolving facility, commitment fee percentage   0.30%    
Senior secured credit facilities | Maximum        
Debt Instrument [Line Items]        
Undrawn portion of revolving facility, commitment fee percentage   0.45%    
Senior secured credit facilities | London Interbank Offered Rate (LIBOR) | Minimum        
Debt Instrument [Line Items]        
Spread on variable rate   1.75%    
Senior secured credit facilities | London Interbank Offered Rate (LIBOR) | Maximum        
Debt Instrument [Line Items]        
Spread on variable rate   2.50%    
Senior secured credit facilities | Base rate | Minimum        
Debt Instrument [Line Items]        
Spread on variable rate   0.75%    
Senior secured credit facilities | Base rate | Maximum        
Debt Instrument [Line Items]        
Spread on variable rate   1.50%    
Senior secured credit facilities | Line of Credit        
Debt Instrument [Line Items]        
Unamortized debt issuance costs 800,000      
Term facility        
Debt Instrument [Line Items]        
Line of credit   $ 70,500,000    
Term facility | Line of Credit        
Debt Instrument [Line Items]        
Credit facility, additional available borrowings $ 80,000,000      
Debt instrument, term 5 years      
Distribution to subsidiary of Exelis $ 74,600,000      
Payments of debt issuance costs 1,800,000      
Amortization expense   400,000 $ 400,000 $ 1,400,000
Revolver | Line of Credit        
Debt Instrument [Line Items]        
Credit facility, additional available borrowings $ 120,000,000      
Debt instrument, term 5 years      
Available borrowing capacity   117,000,000    
Unsecured Debt        
Debt Instrument [Line Items]        
Credit facility, additional available borrowings $ 75,000,000.0      
Quarterly Through September 30, 2019 | Term facility        
Debt Instrument [Line Items]        
Line of credit   1,000,000    
Quarterly Fiscal Quarters December 31, 2019 through September 30, 2020 | Term facility        
Debt Instrument [Line Items]        
Line of credit   1,500,000    
Quarterly Fiscal Quarters December 31, 2020 Through September 30, 2021 | Term facility        
Debt Instrument [Line Items]        
Line of credit   2,000,000    
Quarterly Fiscal Quarters December 31, 2021 Through September 30, 2022 | Term facility        
Debt Instrument [Line Items]        
Line of credit   2,600,000    
Due November 15, 2022 | Term facility        
Debt Instrument [Line Items]        
Line of credit   $ 47,600,000