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Goodwill and Intangible Assets, Net - Schedule of Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill
Beginning of year		$ 54,119
Impairment	$ (178)	(9,635)	$ (87,862)	$ 0
End of year		54,363	54,119
Continuing Operations
Goodwill
Beginning of year		54,119	83,992
Impairment		0	(29,820)	0
Foreign currency translation adjustments		244	(53)
End of year		$ 54,363	$ 54,119	$ 83,992

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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