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Commitments and Contingencies Narrative (Details) - Orbitz - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2014 | Jun. 30, 2015 | Dec. 31, 2013
Entity Information [Line Items] |  |  |
Operating Leases, Rent Expense, Net | $ 7,300 |  |
Operating Leases, Future Minimum Sublease Rentals | 1,000 |  |
Tax sharing liability, remaining payments | 96,171 | $ 87,300 |
Unrecognized tax benefits | 3,348 | $ 3,300 | $ 3,569
Surety Bonds Outstanding | 7,500 |  |
Surety Bonds Outstanding Secured by Letters of Credit | 5,300 |  |
Bank Guarantees Outstanding | $ 25,300 |  |

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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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