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Schedule of Company's Deferred Consideration Liability Under Acquisitions Agreements (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Combinations [Abstract]
Beginning Balance	$ 3,866	$ 11,334	$ 592
Additional obligations acquired	3,051		10,659
Adjustment to deferred consideration within the measurement period		(1,697)
Reassessment of deferred consideration	(4,120)	(6,050)
Accretion of discounted liabilities	72	345	109
Payments on existing obligations	(850)	(66)	(26)
Foreign exchange effect	(229)
Ending Balance	$ 1,790	$ 3,866	$ 11,334

X

- Definition

Asset retirement obligation adjustment to deferred consideration.

+ References

No definition available.

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- Definition

Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

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Amount of foreign currency translation gain (loss) which decreases (increases) asset retirement obligations.

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Amount of asset retirement obligations incurred during the period.

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Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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