Common Stock, Closing Price Per Share

No definition available.

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- Definition

Debt Conversion, Converted Instrument, Principal Amount Used Per Conversion

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Debt Instrument, Closing Trading Amount Price Per Share

+ References

No definition available.

+ Details

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- Definition

Number Of Notes Converted

+ References

No definition available.

+ Details

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- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

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- Definition

Dividend or interest rate associated with the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction. Noncash are transactions that affect recognized assets or liabilities but that do not result in cash receipts or cash payments. Part noncash refers to that portion of the transaction not resulting in cash receipts or cash payments.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Balance Type:	na
Period Type:	instant

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

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Balance Type:	credit
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

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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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Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Name Accounting Standards Codification
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-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
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-SubTopic 10
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-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3581-108585

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- Details

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Convertible Senior Notes (Narrative) (Details)			1 Months Ended	9 Months Ended	21 Months Ended
Convertible Senior Notes (Narrative) (Details)	Aug. 24, 2018 USD ($) item $ / shares $ / item shares	Jun. 30, 2014 USD ($) item $ / shares	Nov. 02, 2018 item	Sep. 30, 2018 USD ($) $ / shares $ / item	Jun. 30, 2018 USD ($) item	Aug. 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)
Debt Instrument [Line Items]
Unwind of convertible note capped call				$ 121,703,000
Convertible Senior Notes [Member] \| Initial Issuance - 2028 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 800,000,000
Convertible Senior Notes [Member] \| Additional Issuance - 2028 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount						$ 80,000,000
Convertible Senior Notes [Member] \| 2028 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				880,000,000		$ 880,000,000
Debt instrument, interest rate	2.00%					2.00%
Convertible senior notes, conversion rate	2.2553%
Converted instrument, principal amount used per conversion	$ 1,000
Convertible senior notes, conversion price \| $ / shares	$ 443.40
Amount paid to enter into capped call transactions	$ 91,784,000
Percentage of debt conversion price	130.00%
Estimated fair value	$ 868,745,000
Closing trading amount price per share \| $ / item	100
Common stock, closing price per share \| $ / shares	$ 340.50
Amount of debt extinguished	$ 263,724,000
Convertible Senior Notes [Member] \| 2019 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 330,000,000		66,138,000				$ 329,972,000
Debt instrument, interest rate		2.25%
Convertible senior notes, conversion rate		7.9353%
Converted instrument, principal amount used per conversion		$ 1,000
Number of notes converted \| item					138
Convertible senior notes, amount converted					$ 138,000
Convertible senior notes, conversion price \| $ / shares		$ 126.02
Amount paid to enter into capped call transactions		$ 19,668,000					$ 45,692,000		$ 67,308,000
Estimated fair value				$ 179,114,000				$ 829,048,000
Closing trading amount price per share \| $ / item				100
Common stock, closing price per share \| $ / shares				$ 340.5
Amount of debt extinguished	263,724,000
Cash payment for debt extinguishment	$ 348,123,000
Shares issued related to the debt extinguishment \| shares	1,044,298
Unwind of convertible note capped call	$ 121,703,000
Debt instrument convertible, if-converted value in excess of principal				$ 112,549,000
Convertible Senior Notes [Member] \| 2019 Convertible Senior Notes [Member] \| Subsequent Events [Member]
Debt Instrument [Line Items]
Number of notes converted \| item			151
30 Day Measurement Period [Member] \| Convertible Senior Notes [Member] \| 2028 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, convertible trading days \| item	20
Debt instrument, convertible consecutive trading days \| item	30
Percentage of debt conversion price	130.00%
30 Day Measurement Period [Member] \| Convertible Senior Notes [Member] \| 2019 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, convertible trading days \| item		20
Debt instrument, convertible consecutive trading days \| item		30
Percentage of debt conversion price		130.00%
5 Day Measurement Period [Member] \| Convertible Senior Notes [Member] \| 2028 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, convertible trading days \| item	5
Debt instrument, convertible consecutive trading days \| item	5
Percentage of debt conversion price	98.00%
5 Day Measurement Period [Member] \| Convertible Senior Notes [Member] \| 2019 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, convertible trading days \| item		5
Debt instrument, convertible consecutive trading days \| item		5
Percentage of debt conversion price		98.00%