INCOME TAXES - Additional information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income tax benefit (expense)	$ 7,925	$ (1,889)	$ 14,866	$ 11,552
Effective tax rates (as a percent)	24.20%	7.20%	50.70%	(43.70%)
Federal statutory income tax rate (as a percentage)			21.00%
Excess tax benefit on stock compensation	$ 175	$ 2,816	$ 1,982	$ 16,541
Income tax benefit from CARES Act	$ 0	0	$ 6,104	0
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount		$ 1,900		$ 1,900

CARES Act, Income Tax Expense (Benefit)

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Excess Tax Benefit on Stock Compensation, Income Tax Expense (Benefit)

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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

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Amount 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 research tax credit.

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