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Net Income/(Loss) per Share Shares Outstanding (Details) - Orbitz - shares | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Weighted Average Number of Shares Outstanding Reconciliation [Line Items] |  |  |  |  |
Weighted-average shares outstanding, basic | 112,418,132 | 110,218,036 | 112,007,027 | 109,907,641 | 110,537,992
Weighted-average shares outstanding, diluted | 112,418,132 | 115,079,178 | 112,007,027 | 114,474,084 | 114,344,440
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Weighted Average Number of Shares Outstanding Reconciliation [Line Items] |  |  |  |  |
Weighted-average shares outstanding, potentially dilutive | 0 | 2,318,956 |  | 1,852,820 | 1,367,392
Performance Based Restricted Stock Units [Member] |  |  |  |  |
Weighted Average Number of Shares Outstanding Reconciliation [Line Items] |  |  |  |  |
Weighted-average shares outstanding, potentially dilutive | 0 | 2,095,044 |  | 2,255,755 | 1,969,674
Stock Options [Member] |  |  |  |  |
Weighted Average Number of Shares Outstanding Reconciliation [Line Items] |  |  |  |  |
Weighted-average shares outstanding, potentially dilutive | 0 | 447,142 |  | 457,868 | 469,382

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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 28A -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1500-109256 + Details
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1505-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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