Effective Income Tax Rate Reconciliation, Tax Holiday, Per Share

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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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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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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 foreign tax credit.

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INCOME TAXES - Narrative (Details) $ / shares in Units, SFr in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($) $ / shares	Dec. 31, 2019 CHF (SFr)
Income Tax Contingency [Line Items]
Effective income tax rate	19.80%	(32.00%)
Valuation Allowance, foreign deferred tax assets	$ 3.3
Tax benefit related to equity compensation		$ 0.7
Foreign Tax Authority \| Swiss Federal Tax Administration (FTA)
Income Tax Contingency [Line Items]
Effective income tax rate reconciliation, tax benefit, federal tax holiday		$ 10.8
Effective income tax rate reconciliation, tax benefit, federal tax holiday (in dollars per share) \| $ / shares		$ 0.13
Federal tax credit \| SFr			SFr 12.0