Percentage of additional interest payable in the event of default for between 91st Day to 180th Day.

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- Definition

Percentage of additional interest payable in the event of default for first 90 days.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Percentage of principal amount plus accrued and unpaid interest in the event of default.

+ References

No definition available.

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- Definition

Number of trading days immediately preceding the date on which the company provides notice of redemption.

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No definition available.

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- Definition

The holders of principal amount of debt outstanding, that may declare the total amount of principal and accrued and unpaid interest.

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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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- 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.

+ References

No definition available.

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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

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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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

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- Definition

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

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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.

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- Definition

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

+ References

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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.

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No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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No definition available.

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Debt (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Carrying value of convertible notes [Abstract]
Discount	$ 696	$ 0
Carrying value	$ 39,084		$ 0
2021 Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument maturity date	Aug. 01, 2021
Convertible senior notes, interest rate, stated percentage	5.75%
Debt conversion ratio	31.1876
Conversion price (in dollars per share)	$ 1
Percentage of common stock conversion price	200.00%
Number of trading days immediately preceding notice of redemption	5 days
Redemption price percentage	100.00%
Percentage of convertible notes due and payable in event of default	100.00%
Debt instrument, additional interest in the event of default for first 90 Days	0.25%
Debt instrument, additional interest in the event of default between 91st Day to 180th Day	0.50%
Effective interest rate	15.30%
Fair value convertible note	$ 38,388
Carrying value of convertible notes [Abstract]
Principal amount	52,000
Discount	(12,916)
Carrying value	$ 39,084
2021 Convertible Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt conversion ratio	0
Stock price considered for conversion rate (in dollars per share)	$ 26.72
Percentage holders of principal amount of debt	25.00%
2021 Convertible Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt conversion ratio	6.2375
Stock price considered for conversion rate (in dollars per share)	$ 160.00