XML 45 R35.htm IDEA: XBRL DOCUMENT v3.22.2.2
Debt - Narrative (Details)
 1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
Aug. 31, 2020
USD ($)
d
$ / shares
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]              
Unamortized debt discount     $ 16,550,000   $ 16,550,000   $ 20,035,000
Gain (loss) on extinguishment of debt     0 $ (196,000) 0 $ (5,290,000)  
Long-term debt     248,013,000   248,013,000   233,230,000
Bond exchange early participant payment   $ 3,500,000          
Borrowings on credit facility         423,945,000 $ 0  
Outstanding letters of credit     22,100,000   22,100,000   19,100,000
2017 Credit Facility              
Debt Instrument [Line Items]              
Unused capacity commitment fee percentage 0.375%            
Revolving Credit Facility | 2017 Credit Facility              
Debt Instrument [Line Items]              
Commitment fee percentage 0.50%            
Revolving Credit Facility | 2017 Credit Facility | London Interbank Offered Rate (LIBOR)              
Debt Instrument [Line Items]              
Variable interest spread 1.00%            
Revolving Credit Facility | 2017 Credit Facility | Base Rate | Minimum              
Debt Instrument [Line Items]              
Variable interest spread 1.25%            
Revolving Credit Facility | 2017 Credit Facility | Base Rate | Maximum              
Debt Instrument [Line Items]              
Variable interest spread 1.75%            
Revolving Credit Facility | 2017 Credit Facility | Federal Funds Effective Swap Rate              
Debt Instrument [Line Items]              
Variable interest spread 0.50%            
Revolving Credit Facility | 2017 Credit Facility | CDOR Rate              
Debt Instrument [Line Items]              
Variable interest spread 1.00%            
2025 Notes              
Debt Instrument [Line Items]              
Face amount   $ 315,500,000          
Debt conversion, interest rate of debt   9.00%          
Long-term debt, gross   $ 282,600,000 256,970,000   256,970,000   256,970,000
Unamortized debt discount   32,900,000          
Gain (loss) on extinguishment of debt   28,700,000          
Long-term debt   $ 314,800,000          
Debt conversion, percent payable in cash   6.25%          
Debt conversion, percent payable in cash or additional notes   2.75%          
Debt instrument, mandatorily convertible, face amount     123,000,000   123,000,000    
Conversion ratio   0.037037          
Conversion price (in usd per share) | $ / shares   $ 27.00          
Threshold trading days | d   20          
Trading period conversion price (in dollars per share) | $ / shares   $ 30.00          
Debt repurchased face amount     59,900,000   59,900,000    
Debt repurchase amount     58,600,000   58,600,000    
2021 Notes              
Debt Instrument [Line Items]              
Debt conversion, interest rate of debt   6.25%          
Senior Notes              
Debt Instrument [Line Items]              
Unamortized debt discount     53,300,000   53,300,000    
Gain (loss) on extinguishment of debt         (5,300,000)    
Credit Facility              
Debt Instrument [Line Items]              
Line of credit facility, remaining borrowing capacity     127,200,000   127,200,000    
Percentage of borrowing base 50.00%     50.00%   50.00%  
Credit Facility | Minimum              
Debt Instrument [Line Items]              
Fixed charge coverage ratio 1.00            
Fixed charge coverage ratio consecutive days threshold 60 days            
Credit Facility | 2017 Credit Facility              
Debt Instrument [Line Items]              
Long-term debt, gross     10,740,000   10,740,000   $ 0
Line of credit facility, current borrowing capacity     $ 160,000,000   160,000,000    
Borrowings on credit facility         $ 10,700,000    
Credit Facility | 12.5% of Borrowing Base              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity $ 22,400,000     $ 22,400,000   $ 22,400,000  
Percentage of borrowing base 12.50%     12.50%   12.50%  
Credit Facility | Revolving Credit Facility              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity $ 179,000,000     $ 179,000,000   $ 179,000,000  
Weighted average interest rate     5.02%   5.02%    
Deferred loan costs $ 1,600,000            
Credit Facility | Revolving Credit Facility | Interest Rate Floor              
Debt Instrument [Line Items]              
Variable interest spread 0.00%            
Credit Facility | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum              
Debt Instrument [Line Items]              
Variable interest spread 2.25%            
Credit Facility | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum              
Debt Instrument [Line Items]              
Variable interest spread 2.75%            
Credit Facility | Revolving Credit Facility | Base Rate | Minimum              
Debt Instrument [Line Items]              
Variable interest spread 1.25%            
Credit Facility | Revolving Credit Facility | Base Rate | Maximum              
Debt Instrument [Line Items]              
Variable interest spread 1.75%            
Credit Facility | Revolving Credit Facility | CDOR Rate | Minimum              
Debt Instrument [Line Items]              
Variable interest spread 2.25%            
Credit Facility | Revolving Credit Facility | CDOR Rate | Maximum              
Debt Instrument [Line Items]              
Variable interest spread 2.75%            
Credit Facility | Revolving Credit Facility | 80% of Borrowing Base              
Debt Instrument [Line Items]              
Line of credit facility, current borrowing capacity $ 126,000,000     126,000,000   126,000,000  
Current borrowing capacity quarterly reduction $ 500,000     500,000   500,000  
Borrowing base percentage 80.00%            
Credit Facility | Revolving Credit Facility | Canadian Subsidiaries              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity $ 20,000,000     20,000,000   20,000,000  
Credit Facility | Letter of Credit              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity 45,000,000     45,000,000   45,000,000  
Credit Facility | Letter of Credit | 2017 Credit Facility              
Debt Instrument [Line Items]              
Line of credit outstanding     $ 22,100,000   $ 22,100,000    
Credit Facility | Letter of Credit | Canadian Subsidiaries              
Debt Instrument [Line Items]              
Line of credit facility, maximum borrowing capacity $ 3,000,000     $ 3,000,000   $ 3,000,000