The number of shares of the company's common stock to which each Right initially entitles a shareholder to purchase.

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- Definition

The minimum percentage of beneficial ownership of the company's common stock by any person, by itself or together with its affiliates and associates, required to be considered an Acquiring Person as defined in the Shareholder Rights Agreement.

+ References

No definition available.

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- Definition

The stated purchase price for which a shareholder is initially entitled to purchase a full share of the company's common stock under the Shareholder Rights Agreement.

+ References

No definition available.

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- Definition

The stated purchase price for which a shareholder is initially entitled to purchase a one-tenth share of the company's common stock under the Shareholder Rights Agreement.

+ References

No definition available.

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- Definition

The price, per Right, at which each Right is redeemable at any time prior to the time a person becomes an Acquiring Person.

+ References

No definition available.

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- Definition

The dollar amount received by the entity for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

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- Definition

The number of shareholder rights accompanying each outstanding share of the company's common stock under the Shareholder Rights Agreement.

+ References

No definition available.

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- Definition

Shareholders Rights Agreement, Distribution Date, Period After Person Becomes Acquiring Person

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No definition available.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ 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 210.5-02.29)
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5

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- Definition

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

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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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- Definition

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

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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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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
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- Definition

Number of new stock issued during the period.

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-Name Regulation S-X (SX)
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-Section 02
-Paragraph 29, 30
-Article 5

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- References

No definition available.

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Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2013
Stockholders' Equity Note [Abstract]
Shareholder rights accompanying each outstanding share of the company's common stock (in number of Rights)		1
Common stock, beneficial ownership threshold to be considered an Acquiring Person (in hundredths)		5.00%
Purchase price (in dollars per share)		$ 45
Purchase price (in dollars per one-tenth share)		$ 4.50
Common shares purchasable per right (in shares)		0.1
Redemption price (in dollars per Right)		$ 0.001
Sale of common stock (in shares)	135,000,000
Sale of common stock, price per share (in dollars per share)	$ 5.15
Sale of common stock, net proceeds	$ 663,300	$ 0	$ 0	$ 663,335
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		2.00%
Common stock, shares authorized (in shares)		1,000,000,000	1,000,000,000		680,000,000
Shares reserved for conversion under convertible debt (in shares)		96,700,000
Convertible Senior Notes - due April 2020
Debt Instrument [Line Items]
Outstanding principal amount	$ 500,000
Stated interest rate (in hundredths)		2.00%	2.00%
Convertible Junior Subordinated Debentures Due 2063
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		9.00%	9.00%
Shares reserved for conversion under convertible debt (in shares)		28,900,000
Convertible Senior Notes Due 2017
Debt Instrument [Line Items]
Stated interest rate (in hundredths)		5.00%	5.00%
Rights
Debt Instrument [Line Items]
Period after person becomes acquiring person		10 days