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Other Long-Term Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Other Liabilities, Noncurrent [Abstract]

Schedule of Other Long-term Liabilities

Other long-term liabilities consist of the following as of December 31, 2020 and September 30, 2021 (in thousands):

			December 31, 2020						September 30, 2021
Contract liabilities, net of current portion			$	34,866					$	33,201
Asset retirement obligations			7,647						7,944
Deferred payments related to acquisitions			715						—
Other			2,827						2,625
Other long-term liabilities			$	46,055					$	43,770

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Tabular disclosure of other noncurrent liabilities.

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