Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Deferred Charges - Narrative (Details)

v3.21.1
Intangible Assets and Deferred Charges - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 15, 2021
Mar. 31, 2021
Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]      
Deferred charges, amortization period   4 years  
Loss on extinguishment of debt   $ 223 $ 0
Line of Credit | $150 million revolving line of credit, due January 15, 2025 | Revolving Credit Facility      
Finite-Lived Intangible Assets [Line Items]      
Debt term 4 years    
Loss on extinguishment of debt   $ 200  
Minimum      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful life   8 years  
Maximum      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful life   15 years