Debt - Additional Information (Details) - USD ($)
$ in Thousands
 2 Months Ended 6 Months Ended 8 Months Ended 12 Months Ended
Jan. 17, 2020
Jul. 01, 2019
May 03, 2018
Mar. 13, 2018
Feb. 12, 2018
Mar. 13, 2020
Dec. 31, 2019
Mar. 13, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]                      
Original issue discount             $ 10,231   $ 10,231 $ 3,514  
Debt Issuance cost expensed                 2,499 1,708 $ 3,657
Loss on debt extinguishment                 9,860 6,058 $ 330
London Interbank Offered Rate (LIBOR) | Subsequent Event                      
Debt Instrument [Line Items]                      
Base spread (as a percent) 0.75%                    
Standby Letters of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity   $ 10,000                  
IPO                      
Debt Instrument [Line Items]                      
Proceeds received from issuance of shares       $ 156,500              
Class A | IPO                      
Debt Instrument [Line Items]                      
Proceeds received from issuance of shares         $ 143,000            
Term Loans                      
Debt Instrument [Line Items]                      
Debt Term   7 years     7 years            
Principal amount   $ 1,100,000     $ 360,000            
Net proceeds from issuance of debt         355,900            
Cash on hand for term loan repayment         800            
Repayments of debt             186,000   148,000    
Original issue discount   11,500     900            
Arranger and legal costs expensed         3,700            
Debt Issuance cost capitalized     $ 400   1,800            
Debt issuance costs, gross   $ 18,000         $ 39,600   $ 39,600 21,600  
Annual principal payment percentage             1.00%   1.00%    
Accumulated amortization and loss on debt extinguishment             $ 22,400   $ 22,400 14,000  
Term Loans | Subsequent Event                      
Debt Instrument [Line Items]                      
Repayments of debt           $ 38,000   $ 186,000      
Term Loans | London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Base spread (as a percent)   3.25%                  
Term Loans | General and Administrative Expense                      
Debt Instrument [Line Items]                      
Debt Issuance cost expensed         $ 1,900            
Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Debt Term   5 years     5 years            
Maximum borrowing capacity   $ 100,000 $ 100,000   $ 50,000            
Original issue discount   1,500     300            
Outstanding borrowing             0   0    
Debt issuance costs, gross   300         3,700   3,700 2,000  
Accumulated amortization and loss on debt extinguishment             $ 1,500   1,500 1,200  
Credit Agreement                      
Debt Instrument [Line Items]                      
Repayments of debt         499,700       4,400    
Debt Issuance cost expensed   $ 4,500                  
Loss on debt extinguishment         6,100            
Write-off of unamortized debt discount and debt issuance costs         4,200            
Write-off of unamortized debt discount         $ 1,900            
Maximum percentage of borrowings for revolving credit facility as a percent of total commitments   35.00%                  
Maximum first lien leverage ratio on last day of quarter (as a percent)   380.00%                  
Debt issuance costs, gross   $ 22,800                  
Debt extinguishment costs                 $ 5,500    
Average effective interest rate (as a percent)                 5.35%    
Effective interest rate (as a percent)             5.79%   5.79%    
Credit Agreement | London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Base spread (as a percent)   3.25%                  
Credit Agreement | Adjusted London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Base spread (as a percent)   3.25%                  
Credit Agreement | Base Rate                      
Debt Instrument [Line Items]                      
Base spread (as a percent)   2.25%                  
Previous Credit Agreement                      
Debt Instrument [Line Items]                      
Loss on debt extinguishment                 $ 6,300    
Previous Term Loan                      
Debt Instrument [Line Items]                      
Loss on debt extinguishment                 3,600    
Repriced Term Loans | Subsequent Event                      
Debt Instrument [Line Items]                      
Principal amount $ 952,000                    
Debt maturity date 2026-06                    
Debt instrument interest rate description Repriced Term Loans provide for a reduced applicable margin on LIBOR of 75 basis points.                    
Basis spread on variable rate, increase (decrease) 0.75%                    
Repriced Term Loans | London Interbank Offered Rate (LIBOR) | Subsequent Event                      
Debt Instrument [Line Items]                      
Base spread (as a percent) 2.50%                    
Due June 2026, 5.35% interest rate                      
Debt Instrument [Line Items]                      
Original issue discount             $ 20,700   $ 20,700    
Effective interest rate (as a percent)             5.79%   5.79%    
Accumulated amortization and loss on debt extinguishment             $ 10,500   $ 10,500    
Due February 2025, 5.55% interest rate                      
Debt Instrument [Line Items]                      
Original issue discount                   $ 9,200  
Effective interest rate (as a percent)                   6.22%  
Accumulated amortization and loss on debt extinguishment                   $ 5,700