Capped Call Option Redemption Shares

No definition available.

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- Definition

Premium paid to purchase capped call to minimize the impact of potential dilution of convertible debt

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No definition available.

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- Definition

Contingently issuable shares are shares issuable for little or no cash consideration upon the satisfaction of certain considerations.

+ References

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- Definition

The percentage of the convertible debt that the Company can irrevocably elect to settle its obligation in cash.

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No definition available.

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- Definition

Holder Election To Satisfy Obligation In Cash

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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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

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.

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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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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

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.

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- Definition

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

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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

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

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The gross value of stock issued during the period upon the conversion of convertible securities.

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Debt Facilities - Convertible Debt (Details)	1 Months Ended					3 Months Ended	12 Months Ended
Debt Facilities - Convertible Debt (Details)	Dec. 31, 2015 USD ($) $ / shares shares	Nov. 30, 2014 $ / shares	Oct. 31, 2014 USD ($) $ / shares shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2009 USD ($) $ / shares	Jun. 30, 2014 USD ($)	Dec. 31, 2015 USD ($) Days $ / shares shares	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2009 USD ($) $ / shares shares	Sep. 30, 2015 $ / shares	Aug. 31, 2015 $ / shares	Sep. 30, 2014 $ / shares	Dec. 31, 2008 $ / shares	Sep. 30, 2007 USD ($)
Debt Instrument [Line Items]
Interest rate (percent)									8.125%
Repayment of debt							$ 715,270,000	$ 153,473,000	$ 52,500,000
Loss on debt extinguishment							$ 289,000	$ 156,990,000	$ 108,501,000
Common shares reserved for issuance \| shares	11,387,095,000						11,387,095,000
3.00% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	3.00%						3.00%	3.00%	3.00%
4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	4.75%						4.75%	4.75%	4.75%
Common shares reserved for issuance \| shares	1,960,896,000						1,960,896,000
Convertible Subordinated Debt [Member] \| 3.00% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued															$ 395,986,000
Interest rate (percent)				3.00%		3.00%									3.00%
Value of shares issued in exchange for convertible subordinated notes			$ 178,741,000	$ 217,199,000
Shares issued in exchange for convertible subordinated notes \| shares			1,595,496	1,948,578
Repayment of debt				$ 5,387,000
Loss on debt extinguishment						$ 4,210,000		$ 51,183,000
Conversion ratio (in shares per $1,000)			0.0089264
Convertible Subordinated Debt [Member] \| 4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued					$ 373,750,000
Interest rate (percent)					4.75%
Value of shares issued in exchange for convertible subordinated notes	$ 7,803,000			$ 215,830,000
Shares issued in exchange for convertible subordinated notes \| shares	101,947			2,411,851
Repayment of debt	$ 1,000			$ 51,671,000
Loss on debt extinguishment	$ 289,000						$ 289,000	$ 46,973,000
Conversion ratio (in shares per $1,000)	0.0130655	0.0122736			0.0118599
Company election to satisfy obligation in cash (percent)					100.00%
Adjusted conversion price per share \| $ / shares	$ 76.54	$ 81.48	$ 110.85		$ 84.32		$ 76.54			$ 114.82	$ 104.14	$ 76.54	$ 81.48	$ 84.32
Maximum number of shares issuable upon conversion of all outstanding convertible debt \| shares	1,960,896						1,960,896
Holders election to satisfy obligation in cash (percent)					100.00%
Remaining life (in years)							5 months 15 days
Capped call premium, total										$ 49,664,000
Common shares reserved for issuance \| shares										4,432,638
Capped call redemption (shares) \| shares			1,294,192
Convertible Subordinated Debt [Member] \| 4.75% Convertible Subordinated Notes [Member] \| Condition One [Member]
Debt Instrument [Line Items]
Adjusted conversion price per share \| $ / shares	$ 104.14						$ 104.14
Trading period, in days \| Days							20
Consecutive trading days							30 days
Percentage of trading price of convertible subordinated notes, maximum							130.00%
Convertible Subordinated Debt [Member] \| 4.75% Convertible Subordinated Notes [Member] \| Condition Two [Member]
Debt Instrument [Line Items]
Trading period, in days \| Days							5
Consecutive trading days							10 days
Percentage of trading price of convertible subordinated notes, maximum							98.00%