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Debt - Narrative (Details) - USD ($)
3 Months Ended
Dec. 31, 2020
Aug. 29, 2021
May 30, 2021
Dec. 02, 2019
Jun. 25, 2018
Nov. 01, 2016
Debt Instrument [Line Items]            
Debt issuance costs   $ 4,814,000 $ 5,098,000      
BMO | Interest Rate Swap            
Debt Instrument [Line Items]            
Interest rate swap contract notional amount       $ 110,000,000 $ 30,000,000 $ 50,000,000
LIBOR | BMO | Interest Rate Swap            
Debt Instrument [Line Items]            
Interest rate       1.53% 2.74% 1.22%
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 $ 10,300,000          
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          
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 | LIBOR            
Debt Instrument [Line Items]            
Basis 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]            
Basis spread on variable rate 7.50%          
Credit Agreement With JPMorgan Chase, BMO Harris Bank, and City National Bank | Term loan            
Debt Instrument [Line Items]            
Debt instrument, interest rate, stated percentage   9.50%        
Revolving Credit Facility | Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC            
Debt Instrument [Line Items]            
Revolving line of credit $ 75,000,000          
Commitment fee percentage 0.375%          
Line of credit facility, accordion feature, increase limit $ 15,000,000          
Write off of deferred debt issuance costs   $ 1,100,000        
Revolving Credit Facility | Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Minimum | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.00%          
Revolving Credit Facility | Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Minimum | Base Rate            
Debt Instrument [Line Items]            
Basis spread on variable rate 1.00%          
Revolving Credit Facility | Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Maximum | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.50%          
Revolving Credit Facility | Credit Agreement With BMO Harris Bank, Goldman Sachs Specialty Lending Group, L.P., and Guggenheim Credit Services, LLC | Maximum | Base Rate            
Debt Instrument [Line Items]            
Basis spread on variable rate 1.50%          
Revolving Credit Facility | Sixth Amendment | Eurodollar            
Debt Instrument [Line Items]            
Long-term line of credit   $ 32,000,000        
Revolver interest rate   3.00%