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Other Long-Term Liabilities (Tables)
9 Months Ended
Sep. 30, 2023
Other Liabilities, Noncurrent [Abstract]  
Schedule of Other Long-term Liabilities
Other long-term liabilities consist of the following as of December 31, 2022 and September 30, 2023 (in thousands):
December 31, 2022September 30, 2023
Contract liabilities, net of current portion$36,540 $34,738 
Asset retirement obligations6,283 5,273 
Other3,183 2,948 
Other long-term liabilities$46,006 $42,959