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Debt Instrument, Repurchase Prepayment Penalty

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Proceeds From Sale Of Convertible Debt, Capped Call Transactions Payment

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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.

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Exercise price per share or per unit of warrants or rights outstanding.

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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.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Face (par) amount of debt instrument at time of issuance.

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Increase for accrued, but unpaid interest on the debt instrument for the period.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Fair value amount of debt instrument that was repurchased.

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Face (par) amount of the original debt instrument that was repurchased.

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Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Price of a single share of a number of saleable stocks of a company.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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FINANCING ARRANGEMENTS - Convertible Senior Notes (Details)	1 Months Ended			3 Months Ended	12 Months Ended
	May 31, 2021 USD ($)	Apr. 30, 2021 USD ($) $ / shares	May 31, 2016 $ / shares	Jun. 30, 2021 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 01, 2021	Apr. 30, 2016 USD ($)	Apr. 04, 2016
Debt Instrument [Line Items]
Loss on extinguishment of debt					$ 5,090,000	$ 0	$ 0
Share price \| $ / shares					$ 23,160,000
Strike price (in usd per share) \| $ / shares			$ 108.00
Conversion price (in usd per share) \| $ / shares			$ 170.00
Senior Notes \| 3.25% Convertible Senior Notes due 2022
Debt Instrument [Line Items]
Debt stated interest rate										3.25%
Principal amount						250,000,000			$ 250,000,000
Aggregate purchase price				$ 255,000,000
Repurchased debt outstanding principal amount				250,000,000
Debt repurchase accrued interest amount	$ 1,000,000
Debt repurchase prepayment penalty	$ 4,000,000
Loss on extinguishment of debt				$ 5,100,000
Debt related commitment fees and issuance costs						6,800,000
Transaction costs attributable to the liability component						$ 4,800,000
Debt effective interest rate					3.76%	9.75%		3.76%
Equity component of convertible debt						$ 2,000,000
Estimated fair value of convertible notes						$ 263,300,000
Senior Notes \| 1.125% Convertible Senior Notes Due 2026
Debt Instrument [Line Items]
Debt stated interest rate		1.125%
Principal amount		$ 230,000,000			$ 230,000,000
Debt effective interest rate					1.83%
Estimated fair value of convertible notes					$ 183,300,000
Conversion price (in usd per share) \| $ / shares		$ 68,120,000		$ 68.12
Debt issuance costs					$ 7,800,000
Net proceeds		$ 222,100,000
Proceeds from debt used for capped call transactions payment		$ 27,400,000
Debt convertible, conversion ratio		0.0146800
Debt conversion price, premium on stock price		100.00%
Senior Notes \| 1.125% Convertible Senior Notes Due 2026 \| Maximum
Debt Instrument [Line Items]
Conversion price (in usd per share) \| $ / shares		$ 104.80