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Note 16 - Interest Bearing Loans (Details Textual) - USD ($)
$ in Thousands
Oct. 01, 2021
Dec. 20, 2018
Dec. 31, 2021
Nov. 05, 2018
ABL Credit Facility [Member] | Revolving Credit Facility [Member] | Secured Debt [Member]        
Line of Credit Facility, Maximum Borrowing Capacity       $ 100,000
The 2018 RCF [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 150,000    
The 2018 RCF [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate   3.75%    
The 2018 RCF [Member] | Drawdowns as Loans [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 100,000    
The 2018 RCF [Member] | Bonds and Guarantees [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   $ 50,000    
New Credit Facility [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 200,000      
Line of Credit Facility, Option to Increase Maximum Borrowing Capacity $ 250,000      
Debt Instrument, Covenant, Minimum EBITDA of Guarantors 80.00%      
Debt Instrument, Covenant, Minimum Consolidated Assets of Guarantors 70.00%      
Debt Instrument, Covenant, Minimum EBITDA and Assets of Subsidiaries 5.00%      
Debt Instrument, LIBOR Floor 0.00%      
Line of Credit Facility, Commitment Fee Percentage 30.00%      
Payments of Debt Issuance Costs $ 5,100      
Debt Instrument, Covenant, Minimum Cash Flow Cover Ratio 1.5      
Debt Instrument, Covenant, Minimum Interest Cover Ratio 4.0      
Debt Instrument, Covenant, Maximum Senior Leverage Ratio 2.25      
Debt Instrument, Maximum Percentage of Aggregate Capital Expenditures 110.00%      
New Credit Facility [Member] | Drawdowns as Loans [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 130,000      
Long-term Debt, Total     $ 0  
New Credit Facility [Member] | Drawdowns as Loans [Member] | One-third Drawn [Member]        
Line of Credit Facility, Upfront Fee Percentage 0.25%      
New Credit Facility [Member] | Drawdowns as Loans [Member] | Two-thirds Drawn [Member]        
Line of Credit Facility, Upfront Fee Percentage 0.50%      
New Credit Facility [Member] | Drawdowns as Loans [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate 3.75%      
New Credit Facility [Member] | Bonds and Guarantees [Member]        
Long-term Debt, Total     $ 33,400  
New Credit Facility [Member] | Letter of Credit [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 70,000      
Line of Credit Facility, Upfront Fee Percentage 0.75%      
New Credit Facility [Member] | Letter of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate 3.00%