Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Swaps (Details)

v3.20.2
Long-Term Debt - Swaps (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
item
Sep. 30, 2020
USD ($)
item
Dec. 31, 2019
USD ($)
Jun. 13, 2019
USD ($)
Derivative [Line Items]        
Amount expected to be amortized from AOCI   $ 2,991    
Mark-to-market adjustments on derivatives not classified as hedges   3,133    
Inventories - truck chassis floor plan $ 11,306 11,306 $ 6,539  
Interest Expense, Debt 673 1,637    
Interest rate swap        
Derivative [Line Items]        
Negative fair value $ 14,099 $ 14,099 6,736  
Number of financial institutions for which the entity is exposed to counterparty credit risk | item 1 1    
Interest rate swap | Accrued Expenses and Other Current Liabilities        
Derivative [Line Items]        
Negative fair value $ 4,064 $ 4,064 1,522  
Interest rate swap | Other Noncurrent Liabilities        
Derivative [Line Items]        
Negative fair value $ 10,035 $ 10,035 $ 5,214  
Interest rate swap effective May 31,2019 through May 31,2024 [member]        
Derivative [Line Items]        
Notional amount       $ 175,000
Interest rate 2.495% 2.495%    
Interest rate swap effective May 31,2019 through May 31,2024 [member] | London Interbank Offered Rate (LIBOR)        
Derivative [Line Items]        
LIBOR floor (as a percent) 1.00% 1.00%