Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)

v3.19.3
Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)
$ in Thousands
1 Months Ended 9 Months Ended
Jul. 19, 2019
USD ($)
Jul. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
segment
Sep. 30, 2018
USD ($)
Jan. 01, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]            
Cash and cash equivalents     $ 9,728     $ 39,154
Long term debt     $ 815,734      
Equity method investment, ownership percentage 35.00%          
Number of operating segments | segment     2      
Current and non-current contract assets     $ 11,300      
Right-of-use assets, net     24,167   $ 23,000  
Operating lease, liability     46,369   $ 25,900  
Other debt            
Debt Instrument [Line Items]            
Long term debt     26,792     $ 1,707
Other debt | 2017 Credit Agreement            
Debt Instrument [Line Items]            
Debt instrument, face amount     58,900      
Long term debt     68,600      
Secured Debt            
Debt Instrument [Line Items]            
Upsizing of term loan, amount $ 40,000 $ 40,000 $ 40,000 $ 0    
Reduction in principle payments $ 25,300