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Other Long-Term Liabilities (Tables)
 12 Months Ended
Dec. 31, 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 2023 (in thousands):
 December 31, 2022December 31, 2023
Contract liabilities, net of current portion$36,540 $37,188 
Asset retirement obligations6,283 5,225 
Other3,183 3,190 
Other long-term liabilities$46,006 $45,603