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Commitments and Contingencies Company Litigation (Details) - Orbitz $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 USD ($) | Apr. 30, 2013 USD ($) | Mar. 31, 2014 USD ($) | Jun. 30, 2015 USD ($) City | Dec. 31, 2014 USD ($) City Rate | Dec. 31, 2013 USD ($) | Dec. 31, 2011 USD ($) | Dec. 09, 2013 USD ($) | Oct. 02, 2013 LegalMatter | Dec. 31, 2012 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Estimated Litigation Liability, Current |  |  |  | $ 2,700 | $ 4,300 |  |  |  |  |
Loss Contingency, Range of Possible Loss, Minimum |  |  |  | $ 200 |  |  |  |  |  |
Contract exit costs, total |  |  |  |  | $ 11,700 |  |  |  |  |
Loss Contingency, Number of Cities Who Issued Notifices of Possible State or Local Hotel Occupancy or Related Taxes Owed | City |  |  |  | 43 | 43 |  |  |  |  |
Loss Contingency, Number Of Motions For Summary Judgement | LegalMatter |  |  |  |  |  |  |  |  | 1 |
Hotel Occupancy Tax Assessments Not Final [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Range of Possible Loss, Minimum |  |  |  | $ 13,600 | $ 20 |  |  |  |  |
Loss Contingency Range Of Possible Loss High Case |  |  |  |  | 58,800 |  |  |  |  |
Loss Contingency, Range of Possible Loss, Maximum |  |  |  | 16,900 | 116,000 |  |  |  |  |
Hotel Occupancy Tax, Administratively Final Assessments [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Range of Possible Loss, Minimum |  |  |  | 20 | 200 |  |  |  |  |
Loss Contingency Range Of Possible Loss High Case |  |  |  | 10,500 | 3,200 |  |  |  |  |
Loss Contingency, Range of Possible Loss, Maximum |  |  |  | 5,800 | 10,800 |  |  |  |  |
Estimated Litigation Liability |  |  |  |  | 2,000 |  |  |  |  |
San Antonio Hotel Occupancy Tax Case [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | 4,300 | 4,300 |  |  |  |  |
Disctrict of Columbia Hotel Occupancy Tax Case [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | 47,500 | 3,700 |  |  |  |  |
Payments for Legal Settlements |  |  | $ 3,800 |  |  |  | $ 3,800 |  |  |
Additional Estimated Litigation Liability |  |  |  | 900 | 950 |  |  |  |  |
Hawaii Hotel Occupancy Tax Case [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  |  | 14,600 | $ 16,900 |  |  |  |
Loss Contingency Assessments Rejected By Court |  |  |  | 26,000 |  |  |  |  |  |
Taxing Authority Assessments Not Final [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Range of Possible Loss, Minimum |  |  |  |  | 20 |  |  |  |  |
Loss Contingency Range Of Possible Loss High Case |  |  |  |  | 5,800 |  |  |  |  |
Loss Contingency, Range of Possible Loss, Maximum |  |  |  |  | 9,670 |  |  |  |  |
Hawaii Rental Car Transactions Tax Case [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  | 3,400 | 3,400 |  |  | $ 3,400 |  |
Hawaii General Excise Tax Case [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  |  | $ 26,000 |  |  |  |  |
Loss Contingency Accrual, Failure to File Penalty Imposed, Percentage, Included in Carrying Value | Rate |  |  |  |  | 25.00% |  |  |  |  |
Payments for Legal Settlements | $ 9,200 | $ 16,900 |  | 26,000 |  | 26,000 |  |  |  |
Loss Contingency Accrual |  |  |  | $ 58,800 | $ 4,200 |  |  |  |  |
Trilegiant [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  |  | 3,600 |  |  |  |  |
Contract exit costs, total |  |  |  |  | 13,500 |  |  |  |  |
Interest Expense, Other |  |  |  |  | $ 1,800 |  |  |  |  |
Loss Contingency, Interest Rate on Judgment |  |  |  |  | 9.00% |  |  |  |  |
Loss Contingency, Damages Sought, Value |  |  |  |  | $ 3,100 |  |  |  |  |
Hawaii Hotel Occupancy Tax Case [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency, Estimate of Possible Loss |  |  |  |  |  | $ 14,600 | $ 58,800 |  |  | $ 16,900
Loss Contingency Assessments Rejected By Court |  |  |  |  | $ 30,000 |  |  |  |  |

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