Debt Instrument, Convertible, If-converted Value

No definition available.

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- Definition

Debt Instrument, Convertible, If-converted Value Lower Than Principal

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Convertible, Threshold Business Days

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

+ Details

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Period Type:	instant

- Definition

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

+ 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 (b)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870

+ Details

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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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-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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Period Type:	duration

- 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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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- 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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Balance Type:	na
Period Type:	duration

- 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
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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-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

+ Details

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Balance Type:	na
Period Type:	instant

- 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

Name:	us-gaap_DebtInstrumentLineItems
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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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Period Type:	duration

- 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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+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Amount of expense or loss included in net income that result in no cash flow, classified as other.

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+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

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- Definition

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Details

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- Details

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Debt - 2019 Convertible Debt (Details)	1 Months Ended		12 Months Ended
Debt - 2019 Convertible Debt (Details)	Sep. 30, 2019 USD ($) day $ / shares	Mar. 31, 2018 USD ($) day $ / shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Non-cash interest expense			$ 19,108,000	$ 10,968,000	$ 3,117,000
Convertible Debt \| Convertible Senior Notes due 2026
Debt Instrument [Line Items]
Debt instrument	$ 650,000,000.0
Interest rate, stated percentage	0.125%
Proceeds from issuance of convertible senior notes	$ 639,500,000
Conversion ratio	0.0114040
Conversion price (in dollars per share) \| $ / shares	$ 87.69
If-converted value lower than principal			321,600,000
If-converted value			328,400,000
Redemption price, percentage	100.00%
Carrying amount of equity component			154,000,000.0
Capitalization of debt issuance costs			10,500,000
Non-cash interest expense			5,600,000
Unamortized debt issuance expense			7,800,000
Convertible Debt \| Convertible Senior Notes due 2023
Debt Instrument [Line Items]
Debt instrument		$ 345,000,000.0
Interest rate, stated percentage		0.00%
Proceeds from issuance of convertible senior notes		$ 335,000,000.0
Conversion ratio		27.5691
Conversion price (in dollars per share) \| $ / shares		$ 36.27
Redemption price, percentage		100.00%
Carrying amount of equity component			72,800,000
Capitalization of debt issuance costs		$ 10,000,000.0
Non-cash interest expense			15,200,000	12,200,000
Unamortized debt issuance expense			5,200,000	6,700,000
Reported Value Measurement \| Level 2 \| Convertible Debt \| Convertible Senior Notes due 2026
Debt Instrument [Line Items]
Long-term debt, fair value			522,200,000
Reported Value Measurement \| Level 2 \| Convertible Debt \| Convertible Senior Notes due 2023
Debt Instrument [Line Items]
Long-term debt, fair value			$ 310,300,000	$ 279,100,000
Debt Instrument, Redemption, Period One \| Convertible Debt \| Convertible Senior Notes due 2026
Debt Instrument [Line Items]
Threshold trading days \| day	20
Threshold consecutive trading days \| day	30
Threshold percentage of stock price trigger	130.00%
Debt Instrument, Redemption, Period One \| Convertible Debt \| Convertible Senior Notes due 2023
Debt Instrument [Line Items]
Threshold trading days \| day		20
Threshold consecutive trading days \| day		30
Threshold percentage of stock price trigger		130.00%
Debt Instrument, Redemption, Period Two \| Convertible Debt \| Convertible Senior Notes due 2026
Debt Instrument [Line Items]
Threshold consecutive trading days \| day	10
Threshold percentage of stock price trigger	98.00%
Threshold business days \| day	5
Debt Instrument, Redemption, Period Two \| Convertible Debt \| Convertible Senior Notes due 2023
Debt Instrument [Line Items]
Threshold consecutive trading days \| day		10
Threshold percentage of stock price trigger		98.00%