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Debt - Narrative (Details)
12 Months Ended
Dec. 31, 2020
USD ($)
Jul. 15, 2020
Oct. 25, 2019
USD ($)
May 30, 2021
USD ($)
May 31, 2020
USD ($)
Feb. 23, 2020
Dec. 02, 2019
USD ($)
Nov. 30, 2018
USD ($)
Jun. 25, 2018
USD ($)
Nov. 01, 2016
USD ($)
Sep. 23, 2016
USD ($)
Debt Instrument [Line Items]                      
Term loan facility       $ 164,902,000 $ 112,917,000            
Debt issuance costs       $ 5,098,000 $ 1,083,000            
Interest Rate Swap | BMO                      
Debt Instrument [Line Items]                      
Derivative, notional amount             $ 110,000,000.0   $ 30,000,000.0 $ 50,000,000.0  
London Interbank Offered Rate (LIBOR) | Interest Rate Swap | BMO                      
Debt Instrument [Line Items]                      
Interest rate             1.53%   2.74% 1.22%  
Credit Agreement With JPMorgan Chase, BMO Harris Bank, and City National Bank | Term loan                      
Debt Instrument [Line Items]                      
Term loan facility                     $ 50,000,000.0
Debt instrument, interest rate, stated percentage       9.50%              
Credit Agreement With JPMorgan Chase, BMO Harris Bank, and City National Bank | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Revolving line of credit                     $ 100,000,000.0
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank | Term loan                      
Debt Instrument [Line Items]                      
Term loan facility               $ 100,000,000.0      
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Revolving line of credit               $ 105,000,000.0      
Sixth Amendment To The Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank                      
Debt Instrument [Line Items]                      
Covenant, leverage ratio           5.00          
Sixth Amendment To The Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank | Term loan                      
Debt Instrument [Line Items]                      
Term loan facility     $ 120,000,000.0                
Periodic payment     3,000,000.0                
Sixth Amendment To The Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Revolving line of credit     $ 100,000,000.0                
Sixth Amendment To The Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank | Revolving Credit Facility | Eurodollar                      
Debt Instrument [Line Items]                      
Long-term line of credit       $ 29,000,000.0              
Revolver interest rate       3.00%              
Seventh Amendment                      
Debt Instrument [Line Items]                      
Covenant, leverage ratio           5.75          
Covenant, quarterly decrease in leverage ratio       0.0025              
Final fixed leverage ratio       3.50              
Seventh Amendment | Minimum | Prime Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate         0.25%            
Seventh Amendment | Minimum | Eurodollar                      
Debt Instrument [Line Items]                      
Base spread on variable rate         1.25%            
Seventh Amendment | Maximum | Prime Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate         3.00%            
Seventh Amendment | Maximum | Eurodollar                      
Debt Instrument [Line Items]                      
Base spread on variable rate         4.00%            
Eighth Amendment                      
Debt Instrument [Line Items]                      
Percentage of EBITDA, maximum limit on permitted exclusions   20.00%                  
Eighth Amendment | Minimum                      
Debt Instrument [Line Items]                      
Commitment fee percentage   0.15%                  
Eighth Amendment | Minimum | Prime Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate   0.75%                  
Eighth Amendment | Minimum | Eurodollar                      
Debt Instrument [Line Items]                      
Base spread on variable rate   1.75%                  
Eighth Amendment | Maximum                      
Debt Instrument [Line Items]                      
Commitment fee percentage   0.55%                  
Eighth Amendment | Maximum | Prime Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate   3.50%                  
Eighth Amendment | Maximum | Eurodollar                      
Debt Instrument [Line Items]                      
Base spread on variable rate   4.50%                  
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC                      
Debt Instrument [Line Items]                      
Debt issuance costs $ 10,200,000                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Term loan                      
Debt Instrument [Line Items]                      
Debt instrument, face amount $ 170,000,000.0                    
Line of credit facility, quarterly payment, percent of principal 5.00%                    
Percent of prepayment penalty 3.00%                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Term loan | London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Base spread on variable rate 8.50%                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Term loan | Base Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate 7.50%                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Revolving line of credit $ 75,000,000.0                    
Commitment fee percentage 0.375%                    
Line of credit facility, accordion feature, increase limit $ 15,000,000.0                    
Write off of deferred debt issuance costs       $ 1,100,000              
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Base spread on variable rate 2.00%                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Revolving Credit Facility | Minimum | Base Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate 1.00%                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Base spread on variable rate 2.50%                    
Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Revolving Credit Facility | Maximum | Base Rate                      
Debt Instrument [Line Items]                      
Base spread on variable rate 1.50%