Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Swaps (Details)

v3.20.1
Long-Term Debt - Swaps (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 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 1,413    
Inventories - truck chassis floor plan 8,774 $ 6,539  
Interest rate swap      
Derivative [Line Items]      
Negative fair value $ 13,876 6,736  
Number of financial institutions for which the entity is exposed to counterparty credit risk | item 1    
Interest rate swap | Accrued Expenses and Other Current Liabilities      
Derivative [Line Items]      
Negative fair value $ 3,570 1,522  
Interest rate swap | Other Noncurrent Liabilities      
Derivative [Line Items]      
Negative fair value $ 10,306 $ 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%    
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%