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DEBT - Convertible Debt (Details) - 2019 Notes - Senior Notes | Mar. 19, 2019 USD ($) day $ / shares
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Debt Instrument [Line Items] |
Face amount | $ 230,000,000.0
Interest rate, stated percentage | 2.50%
Proceeds from issuance of debt | $ 222,900,000
Commissions and expenses related to offering of debt | $ 7,100,000
Convertible, conversion ratio | 0.054781
Convertible, conversion price (in dollars per share) | $ / shares | $ 18.25
Convertible, threshold trading days | day | 20
Convertible, threshold consecutive trading days | day | 30
Convertible, threshold percentage of stock price trigger | 130.00%

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