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FINANCING ARRANGEMENTS - 1.125% Convertible Senior Notes due 2026 (Details) $ / shares in Units, $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2021 USD ($) $ / shares | Apr. 30, 2016 | Jun. 30, 2021 USD ($) $ / shares | Mar. 31, 2021 $ / shares
Debt Instrument [Line Items] |  |  |  |
Conversion price (in usd per share) | $ / shares | $ 68.12 |  |  |
Share price (in usd per share) | $ / shares |  |  | $ 43.16 |
1.125% Convertible Senior Notes due 2026 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate | 1.125% |  |  |
Principal amount | $ 230,000 |  | $ 230,000 |
Net proceeds from issuance of debt | 222,100 |  |  |
Proceeds from debt used for capped call transactions payment | $ 27,400 |  |  |
Debt conversion ratio |  | 0.0146800 |  |
Conversion price (in usd per share) | $ / shares |  |  |  | $ 68.12
Debt issuance costs |  |  | $ 7,800 |
Effective interest rate |  |  | 1.83% |
Fair value of debt |  |  | $ 217,600 |
Debt instrument, term |  |  | 4 years 9 months |
Debt conversion price, premium on stock price | 100.00% |  |  |
1.125% Convertible Senior Notes due 2026 | Senior Notes | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Conversion price (in usd per share) | $ / shares | $ 104.80 |  |  |

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