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INCOME TAXES - Reconciliation of Income Tax Rate (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
U.S. federal statutory rate	21.00%	21.00%	21.00%
State taxes	2.60%	0.70%	1.60%
Foreign	2.40%	3.20%	0.70%
Research and development credit	(1.30%)	(1.70%)	(1.10%)
U.S. tax rate change	0.00%	0.00%	(0.60%)
U.S. tax reform provision (benefit)	1.30%	2.00%	(1.40%)
Transaction costs related to acquisitions	0.00%	1.00%	0.00%
Other, net	0.00%	0.70%	0.40%
Effective rate	26.00%	26.90%	20.60%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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