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FINANCING ARRANGEMENTS - Schedule of Notes (Details) - Senior Notes - 1.125% Convertible Senior Notes due 2026 - USD ($) $ in Thousands	Jun. 30, 2021	Apr. 30, 2021
Debt Instrument [Line Items]
Principal amount	$ 230,000	$ 230,000
Less: debt discount	(7,346)
Net carrying amount of liability	$ 222,654

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