Debt Instrument, Convertible, Threshold Consecutive Trading Days, Following Consecutive Business Days

No definition available.

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- Definition

Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger, Following Consecutive Business Days

+ References

No definition available.

+ Details

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- Definition

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

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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

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

+ References

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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

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- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

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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.

+ References

No definition available.

+ Details

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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.

+ Details

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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.

+ References

No definition available.

+ Details

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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.

+ References

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+ Details

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- Definition

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

+ References

+ Details

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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.

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

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

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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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- Definition

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

+ References

+ Details

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- Definition

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.

+ References

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Debt - Convertible Senior Notes, Additional Information (Details)	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2019 USD ($) d $ / shares	Sep. 30, 2019 USD ($) d $ / shares	Sep. 30, 2018 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
If-converted amount exceed principal	$ 400,000
Interest expense, debt		$ 2,100,000	$ 5,200,000
Convertible Senior Notes
Debt Instrument [Line Items]
Face amount				$ 172,500,000
Convertible Senior Notes \| 3.25% Convertible Senior Notes due 2020
Debt Instrument [Line Items]
Debt issuance cost				5,100,000
Deferred financing costs				$ 4,200,000
Debt instrument, term				6 years
Adjustments to additional paid in capital				$ 900,000
Effective interest rate				6.90%
Conversion ratio		31.1891
Conversion price (in usd per share) \| $ / shares	$ 32.06	$ 32.06
Number of threshold trading days \| d	20
Number of threshold consecutive trading days \| d	30
Threshold percentage of stock price trigger	130.00%
Threshold consecutive trading days \| d		5
Threshold percentage of stock price trigger		98.00%
Amortization of debt discount (premium)		$ 1,100,000	2,700,000
Interest expense		$ 1,000,000.0	$ 2,500,000
Convertible Senior Notes \| Convertible Senior Notes \| 3.25% Convertible Senior Notes due 2020
Debt Instrument [Line Items]
Stated interest rate	3.25%	3.25%