Quarterly report pursuant to Section 13 or 15(d)

Debt - Narrative (Details)

v3.20.2
Debt - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Debt Instrument [Line Items]          
Less debt issuance costs $ (2,959,000)   $ (2,959,000)   $ (2,789,000)
LIBOR          
Debt Instrument [Line Items]          
Base margin     3.00%    
Base Rate          
Debt Instrument [Line Items]          
Base margin     1.75%    
Amended and Restated          
Debt Instrument [Line Items]          
Less debt issuance costs $ (636,000)   $ (636,000)    
Increase in maximum availability     $ 100,000,000    
Effective interest rate 4.54%   4.54%    
Interest expense, net $ 2,900,000 $ 3,400,000 $ 6,300,000 $ 6,300,000  
Amended and Restated | Swap          
Debt Instrument [Line Items]          
Derivative notional amount 145,000,000   145,000,000   125,000,000
Revolving Loans          
Debt Instrument [Line Items]          
Revolving loans maximum borrowing capacity 350,000,000   350,000,000    
Letters of credit outstanding $ 0   $ 0   $ 54,000
Minimum | Amended and Restated          
Debt Instrument [Line Items]          
Interest rate range 3.73%   3.73%    
Maximum | Amended and Restated          
Debt Instrument [Line Items]          
Interest rate range 5.81%   5.81%