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Debt and Financing Arrangements (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Oct. 15, 2018
Debt Instrument [Line Items]      
interest rate   1.06%  
Interest expense $ 300,000 $ 400,000  
Increase in borrowing rate   1.00%  
Interest expense annual increase   $ 800,000  
Revolving Facility      
Debt Instrument [Line Items]      
Principal amount     $ 150,000,000
Long-term debt $ 75,000,000 $ 75,000,000  
Credit Agreement      
Debt Instrument [Line Items]      
Additional borrowings available     100,000,000
Swing Loans      
Debt Instrument [Line Items]      
Additional borrowings available     20,000,000
Letter of Credit      
Debt Instrument [Line Items]      
Additional borrowings available     $ 20,000,000