Class Of Warrant Or Right, Exercise Period

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- Definition

Conversion Of Notes Base Conversion Price

+ References

No definition available.

+ Details

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- Definition

Fair Value Measurement Debt Basis Amount

+ References

No definition available.

+ Details

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- Definition

Percentage Of Purchase Price Of Notes Which Should Be Paid Upon Fundamental Change

+ References

No definition available.

+ Details

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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- Details

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Convertible Senior Notes - Additional Information (Details)	3 Months Ended
	Mar. 31, 2019 USD ($) day trading_day shares	Jun. 30, 2019 shares	Dec. 31, 2018 USD ($)	Jun. 30, 2017 USD ($) shares	Nov. 30, 2013 USD ($) shares
Debt Instrument [Line Items]
Percentage of purchase price of notes which should be paid upon fundamental change (percent)	100.00%
Estimated fair value of the note based on the closing trading price \| $	$ 100		$ 100
Warrant exercise period \| trading_day	60
2018 Warrants
Debt Instrument [Line Items]
Number of shares to be issued upon exercise of the 2018 Warrants \| shares	2,700,000				7,783,023
2022 Warrants
Debt Instrument [Line Items]
Number of shares to be issued upon exercise of the 2018 Warrants \| shares				5,806,936
Stock Price Trigger Measurement
Debt Instrument [Line Items]
Trading days threshold \| day	20
Consecutive trading days threshold, total \| day	30
Threshold percentage of stock price trigger (percent)	130.00%
Notes Price Trigger Measurement
Debt Instrument [Line Items]
Trading days threshold \| day	5
Consecutive trading days threshold, total \| day	5
Threshold percentage of stock price trigger (percent)	98.00%
Conversion of notes base conversion price \| $	$ 1,000
2022 Notes
Debt Instrument [Line Items]
Face amount of debt \| $	$ 782,500,000		$ 782,500,000	$ 782,500,000
Stated interest rate				0.00%
Remaining discount amortization period	38 months
2018 Notes
Debt Instrument [Line Items]
Face amount of debt \| $					$ 575,000,000.0
Stated interest rate					0.00%
Scenario, Forecast \| 2022 Warrants
Debt Instrument [Line Items]
Number of shares to be issued upon exercise of the 2018 Warrants \| shares		1,000,000.0