Other Long-Term Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Other Liabilities, Noncurrent [Abstract]

Schedule of Other Long-Term Liabilities

Other long-term liabilities consist of the following as of December 31, 2019 and March 31, 2020 (in thousands):

	December 31, 2019		March 31, 2020
Contract liabilities, net of current portion	$	30,925	$	31,616
Deferred payments related to acquisitions	4,963		4,122
Asset retirement obligations	1,961		1,954
Employee separation costs	1,838		1,000
Other	1,764		1,748
Other long-term liabilities	$	41,451	$	40,440