FINANCING ARRANGEMENTS - Convertible Senior Notes (Details) - USD ($) |
Apr. 04, 2016 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Debt Instrument [Line Items] | |||
| Estimated fair value of convertible notes | $ 263,300,000 | $ 262,700,000 | |
| Convertible senior notes | |||
| Debt Instrument [Line Items] | |||
| Net proceeds | $ 243,200,000 | ||
| Stated interest rate | 3.25% | ||
| Principal amount converted initially | $ 1,000 | ||
| Number of shares converted (in shares) | 9.25926 | ||
| Conversion price (in usd per share) | $ 108.00 | ||
| Share Price | $ 37.99 | ||
| Closing price of stock, trigger price (in usd per share) | 150.00% | ||
| Number of threshold trading days | 20 | ||
| Consecutive trading days | 30 | ||
| Effective interest rate | 9.75% | ||
| Debt related commitment fees and issuance costs | $ 6,800,000 | ||
| Transaction costs attributable to the liability component | 4,800,000 | $ 20,510,000 | $ 35,131,000 |
| Equity component of convertible debt | 2,000,000.0 | ||
| Convertible senior notes | 2019 Credit Agreement | |||
| Debt Instrument [Line Items] | |||
| Aggregate principal amount of convertible senior notes | $ 250,000,000.0 |
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- Definition Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock. No definition available.
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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature. No definition available.
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- Definition Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion. No definition available.
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- Definition Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature. No definition available.
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. No definition available.
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- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Represents the charge against earnings during the period for commitment fees and debt issuance expenses. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
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