Debt Issuance Costs Attributable to the Equity Component

No definition available.

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- Definition

[Line Items] for Schedule of Convertible Debt [Table]

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No definition available.

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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- Definition

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

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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

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

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- Definition

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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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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

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Amount, after accumulated amortization, of debt discount.

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- Definition

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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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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- Definition

The cash outflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.

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The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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Borrowings Convertible Debt (Details) - Convertible Debt - Convertible Notes Due Twenty Twenty One $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($) $ / shares	Mar. 31, 2018 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2018 USD ($)	May 04, 2016 USD ($) $ / shares
Schedule of Convertible Debt
Debt Instrument, Interest Rate, Stated Percentage					3.25%
Debt Instrument, Convertible, Conversion Ratio	54.2741
Debt Instrument, Convertible, Conversion Price \| $ / shares	$ 18.4250
Debt Issuance Costs, Net	$ 5.0
Debt Issuance Costs Attributable to the Equity Component	1.3
Deferred Tax Assets, Net	0.5
Debt Instrument, Face Amount	172.5			$ 172.5	$ 172.5
Debt Instrument, Unamortized Discount	21.5			23.4
Convertible Notes Payable	151.0			149.1
Convertible Notes Payable, Current	0.0			0.0
Convertible Notes Payable, Noncurrent	151.0			149.1
Debt Instrument, Convertible, Carrying Amount of Equity Component	29.9			$ 29.9
Debt Instrument, Fair Value Disclosure	202.5
Interest Expense, Debt, Excluding Amortization	1.4	$ 1.4
Amortization of Debt Issuance Costs	0.2	0.2
Amortization of Debt Discount (Premium)	1.7	1.5
Interest Expense, Debt	$ 3.3	$ 3.1
Payments for Hedge, Financing Activities			$ 44.5
Class of Warrant or Right, Exercise Price of Warrants or Rights \| $ / shares					$ 21.1050
Proceeds from issuance of warrants			$ 39.1