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INTANGIBLE ASSETS AND GOODWILL - Schedule of Changes in Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Goodwill [Roll Forward]
Goodwill, gross, beginning of period	$ 392,302	$ 386,761
Accumulated impairment losses, beginning of period	(167,406)	(3,106)
Goodwill. beginning of period	224,896	383,655
Goodwill, gross, end of period	584,298	392,302
Accumulated impairment losses, end of period	(167,406)	(3,106)
Goodwill, end of period	416,892	389,196
ECI
Goodwill [Roll Forward]
Acquisition	191,996	0
Goodwill, end of period	191,996
Anova Data, Inc.
Goodwill [Roll Forward]
Goodwill. beginning of period	5,500
Acquisition	$ 0	$ 5,541

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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount before 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.

+ References

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

+ References

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-Topic 350
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