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Other Current Assets and Other Assets - Other current assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Non-trade receivables $ 6,291 $ 7,725
Prepaid maintenance 4,781 4,553
Prepaid insurance 2,397 510
Other prepaid assets 5,058 3,748
Total other current assets $ 18,527 $ 16,536