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Debt - Narrative (Details)
 1 Months Ended 3 Months Ended 12 Months Ended
Aug. 31, 2020
USD ($)
d
$ / shares
shares
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Debt Instrument [Line Items]        
Long-term debt, gross   $ 268,384,000   $ 294,695,000
Unamortized debt discount   27,132,000   30,248,000
Gain (loss) on extinguishment of debt   (933,000) $ 7,459,000  
Bond exchange early participant payment   3,500,000    
Cash paid to repurchase 2025 Notes and 2021 Notes   (13,711,000) (3,362,000)  
Borrowings on revolving Credit Facility   0 55,000,000  
Deferred loan costs written off   0 1,829,000  
Outstanding letters of credit   15,300,000   15,600,000
2025 Notes        
Debt Instrument [Line Items]        
Face amount $ 315,500,000 150,000,000.0    
Debt conversion, interest rate of debt 9.00%      
Long-term debt, gross $ 282,600,000 300,341,000   316,863,000
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 conversion shares amount | shares 37.0370      
Debt conversion amount $ 1,000      
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   16,500,000    
Debt repurchase amount   15,600,000    
Cash paid to repurchase 2025 Notes and 2021 Notes   (13,700,000)    
Notes payable   1,900,000    
2021 Notes        
Debt Instrument [Line Items]        
Debt conversion, interest rate of debt 6.25%      
Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, remaining borrowing capacity   $ 141,500,000    
Percentage of borrowing base   50.00%    
Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity $ 250,000,000.0      
Credit Facility | Foreign Line of Credit        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   $ 45,000,000.0    
Credit Facility | Letter of Credit        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   25,000,000.0    
Credit Facility | Letter of Credit | Canadian Subsidiaries        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   3,000,000.0    
Senior Notes        
Debt Instrument [Line Items]        
Unamortized debt discount   14,700,000    
Gain (loss) on extinguishment of debt       900,000
Deferred loan costs written off     $ 1,800,000  
80% of Borrowing Base | Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, current borrowing capacity   130,000,000.0    
Current borrowing capacity quarterly reduction   $ 500,000    
Borrowing base percentage   80.00%    
2017 Credit Facility        
Debt Instrument [Line Items]        
Unused capacity commitment fee percentage   0.375%    
2017 Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Commitment fee percentage   0.50%    
2017 Credit Facility | Credit Facility        
Debt Instrument [Line Items]        
Long-term debt, gross   $ 0   $ 13,126,000
Line of credit facility, current borrowing capacity   156,800,000    
Borrowings on revolving Credit Facility   0    
2017 Credit Facility | Credit Facility | Letter of Credit        
Debt Instrument [Line Items]        
Line of credit outstanding   15,300,000    
12.5% of Borrowing Base | Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   $ 31,300,000    
Percentage of borrowing base   12.50%    
Interest Rate Floor | Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Variable interest spread   0.75%    
London Interbank Offered Rate (LIBOR) | Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Variable interest spread   2.50%    
London Interbank Offered Rate (LIBOR) | 2017 Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Variable interest spread   1.00%    
Base Rate | Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Variable interest spread   1.50%    
Federal Funds Effective Swap Rate | 2017 Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Variable interest spread   0.50%    
CDOR Rate | 2017 Credit Facility | Revolving Credit Facility        
Debt Instrument [Line Items]        
Variable interest spread   1.00%    
Minimum | Credit Facility        
Debt Instrument [Line Items]        
Fixed charge coverage ratio   1.00    
Fixed charge coverage ratio consecutive days threshold   60 days