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Other long-term liabilities - Preferred Shares, Series C (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Class of Stock [Line Items]    
Total Preferred shares series C $ 12,072 $ 13,348
Preferred shares, Series C | Dividends Payable    
Class of Stock [Line Items]    
2023 1,245  
2024 1,443  
2025 1,459  
2026 1,316  
2027 1,262  
Thereafter to 2031 4,654  
Redemption amount 3,943  
Estimated dividend and redemption payments 15,322  
Less: amounts representing interest (3,250)  
Total Preferred shares series C 12,072  
Less current portion (1,245)  
Preferred shares series C, noncurrent $ 10,827