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Earnings (Loss) Per Share (Details 2) - $ / shares shares in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Aug. 16, 2013 | Jun. 29, 2009
Anti-dilutive shares excluded from calculation of earnings per share |  |  |  |  |
Dilutive Potential Securities Excluded from Computation of EPS Amount Due to Loss |  |  | 3.3 |  |
Options |  |  |  |  |
Anti-dilutive shares excluded from calculation of earnings per share |  |  |  |  |
Anti-dilutive shares excluded from calculation of earnings per share | 2.5 | 5.6 | 7.3 |  |
Convertible notes | 5% Convertible Senior Notes due 2014 |  |  |  |  |
Dilutive potential shares excluded from calculation of earnings per share (in shares) due to the loss position |  |  |  |  |
Stated Interest rate (as a percent) |  |  |  |  | 5.00%
Initial conversion price of notes (in dollars per share) |  |  |  |  | $ 19.31
Convertible notes | 1.125% Convertible Senior Notes due 2018 |  |  |  |  |
Dilutive potential shares excluded from calculation of earnings per share (in shares) due to the loss position |  |  |  |  |
Stated Interest rate (as a percent) | 1.125% |  |  | 1.125% |
Initial conversion price of notes (in dollars per share) |  |  |  | $ 12.07 |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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