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Related Party Transactions (Details) (USD $) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Potential shares of common stock | 8,654,000 | 6,575,000 | 8,654,000 | 6,575,000 |
Related Party (Additional Textual) [Abstract] |  |  |  |  |
Revenue derived from related party transactions |  |  | $ 203,751,000 | $ 211,018,000 | $ 171,110,000
Percentage of related party revenue to total revenue |  |  | 27.00% | 33.00% | 35.00%
Related-party shared services fee |  |  |  | 9,222,000 | 7,900,000
Other related-party operating expenses included within Selling and Marketing expense |  |  | 6,400,000 | 4,300,000 | 1,200,000
Net related party receivable with Expedia and its subsidiaries | 24,000,000 | 14,100,000 | 24,000,000 | 14,100,000 |
Distribution to related party prior to spinoff |  | 405,500,000 |  | 405,500,000 |
Cash on hand retained following the Spin-Off |  | 165,000,000 |  | 165,000,000 |
Common stock purchased by Liberty | 4,799,848 |  |  |  |
Amount received from related party |  |  | 7,000,000 |  |
Expedia [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Related-party interest income (expense), net |  |  |  | $ 500,000 | $ (200,000)
Percentage of voting power | 25.00% | 25.00% | 25.00% | 25.00% |
Board of Directors [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Percentage of voting power | 25.00% | 25.00% | 25.00% | 25.00% |
Maximum [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Period of various commercial agreements |  |  | 1 year |  |
Restricted Stock Units (RSU) [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Common Stock issuable upon settlement | 446,000 | 926,000 | 446,000 | 926,000 |
Stock options vest period |  |  | 5 years |  |
Mr. Diller [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Beneficially Ownership of Shares of Common Stock | 2,047,088 |  |  |  |
Potential shares of common stock | 1,994,759 |  | 1,994,759 |  |
Stock options vest period | 60 days |  |  |  |
Percentage taken from outstanding shares of Common Stock | 1.41% |  |  |  |
Mr. Diller [Member] | Restricted Stock Units (RSU) [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Common Stock issuable upon settlement | 10,319 |  | 10,319 |  |
Liberty [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Beneficially Ownership of Shares of Common Stock | 18,159,752 |  |  |  |
Percentage taken from outstanding shares of Common Stock | 14.00% |  |  |  |
Percentage of beneficially Ownership of Shares of Common Stock | 21.70% |  |  |  |
Right to voting | one vote per share |  |  |  |
Beneficially ownership of equity securities | 56.60% |  |  |  |
Liberty [Member] | Class B common stock [Member] |  |  |  |  |
Related Party Transactions (Textual) [Abstract] |  |  |  |  |
Beneficially Ownership of Shares of Common Stock | 12,799,999 |  |  |  |
Percentage taken from outstanding shares of Common Stock Class B |  |  | 100.00% |  |
Right to voting | ten votes per share |  |  |  |

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