v2.4.0.8
Business Combinations and Acquisitions of Noncontrolling Interests Business Combinations (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Business Acquisition [Line Items]        
Common stock issued in connection with acquisition of business, shares   13,825,283    
Number of Businesses Acquired   4    
Business Combination, Transaction Costs $ 600,000 $ 2,400,000    
Consideration Transferred [Abstract]        
Receivable from seller for working capital adjustments in connection with acquisitions   (3,446,000) 0  
Purchase Price Allocation [Abstract]        
Goodwill 460,972,000 460,972,000   220,827,000
Ticket Monster [Member]
       
Consideration Transferred [Abstract]        
Business Combinations, cash transferred   99,942,000    
Business Combination, issuance of Class A common stock   162,862,000    
Receivable from seller for working capital adjustments in connection with acquisitions   (3,446,000)    
Business Combination, Consideration Transferred   259,358,000    
Purchase Price Allocation [Abstract]        
Business Combination, Cash and Equivalents 24,768,000 24,768,000    
Business Combination, Current Assets, Receivables 15,832,000 15,832,000    
Business Combination, Current Assets, Other 1,264,000 1,264,000    
Business Combination, Current Assets, Prepaid Expense and Other Assets 829,000 829,000    
Business Combination, Property, Plant, and Equipment 5,944,000 5,944,000    
Goodwill 220,592,000 220,592,000    
Business Combination, Other Noncurrent Assets 3,033,000 3,033,000    
Business Combination, Assets 381,356,000 381,356,000    
Business Combination, Current Liabilities, Accounts Payable 5,951,000 5,951,000    
Business Combination, Accrued Merchant and Supplier Payables 82,934,000 82,934,000    
Business Combinations, Accrued Expenses 22,700,000 22,700,000    
Business Combination, Current Liabilities, Other 3,482,000 3,482,000    
Business Combination, Deferred Tax Liabilities Noncurrent 1,264,000 1,264,000    
Business Combination, Noncurrent Liabilities, Other 5,667,000 5,667,000    
Business Combination, Liabilities 121,998,000 121,998,000    
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net 259,358,000 259,358,000    
Ticket Monster [Member] | Subscriber Relationships [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 57,022,000 [1] 57,022,000 [1]    
Ticket Monster [Member] | Merchant Relationships [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 32,176,000 [1] 32,176,000 [1]    
Ticket Monster [Member] | Technology-Based Intangible Assets [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 571,000 [1] 571,000 [1]    
Ticket Monster [Member] | Trade names [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 19,325,000 [1] 19,325,000 [1]    
Ideeli [Member]
       
Consideration Transferred [Abstract]        
Business Combinations, cash transferred   42,339,000    
Business Combination, Consideration Transferred, Liabilities Incurred   359,000    
Business Combination, Consideration Transferred   42,698,000    
Purchase Price Allocation [Abstract]        
Business Combination, Cash and Equivalents 79,000 79,000    
Business Combination, Current Assets, Receivables 988,000 988,000    
Business Combination, Current Assets, Other 572,000 572,000    
Business Combination, Current Assets, Prepaid Expense and Other Assets 22,081,000 22,081,000    
Business Combination, Property, Plant, and Equipment 8,173,000 8,173,000    
Goodwill 5,379,000 5,379,000    
Business Combination, Deferred Tax Assets Noncurrent 7,753,000 7,753,000    
Business Combination, Assets 62,115,000 62,115,000    
Business Combination, Current Liabilities, Accounts Payable 1,640,000 1,640,000    
Business Combination, Accrued Merchant and Supplier Payables 4,092,000 4,092,000    
Business Combinations, Accrued Expenses 9,118,000 9,118,000    
Business Combination, Current Liabilities, Other 482,000 482,000    
Business Combination, Deferred Tax Liabilities Noncurrent 332,000 332,000    
Business Combination, Noncurrent Liabilities, Other 3,753,000 3,753,000    
Business Combination, Liabilities 19,417,000 19,417,000    
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net 42,698,000 42,698,000    
Ideeli [Member] | Subscriber Relationships [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 5,490,000 [1] 5,490,000 [1]    
Ideeli [Member] | Brand Relationships [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 7,100,000 [1] 7,100,000 [1]    
Ideeli [Member] | Trade names [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 4,500,000 [1] 4,500,000 [1]    
Other Acquisitions [Member]
       
Consideration Transferred [Abstract]        
Business Combinations, cash transferred   3,477,000    
Business Combination, Contingent Consideration   4,006,000    
Business Combination, Consideration Transferred   7,483,000    
Purchase Price Allocation [Abstract]        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net (52,000) (52,000)    
Business Combination, Cash and Equivalents 200,000 200,000    
Goodwill 6,261,000 6,261,000    
Business Combination, Deferred Tax Liabilities Noncurrent (433,000) (433,000)    
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net 7,483,000 7,483,000    
Other Acquisitions [Member] | Subscriber Relationships [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 560,000 [2] 560,000 [2]    
Other Acquisitions [Member] | Merchant Relationships [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets 579,000 [2] 579,000 [2]    
Other Acquisitions [Member] | Technology-Based Intangible Assets [Member]
       
Purchase Price Allocation [Abstract]        
Business Combination, Intangible assets $ 568,000 [2] $ 568,000 [2]    
Maximum [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   5 years 0 months 0 days    
Maximum [Member] | Ticket Monster [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   5 years 0 months 0 days    
Maximum [Member] | Ideeli [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   5 years 0 months 0 days    
Maximum [Member] | Other Acquisitions [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   5 years 0 months 0 days    
Minimum [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   1 year 0 months 0 days    
Minimum [Member] | Ticket Monster [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   2 years 0 months 0 days    
Minimum [Member] | Ideeli [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   3 years 0 months 0 days    
Minimum [Member] | Other Acquisitions [Member]
       
Business Acquisition [Line Items]        
Finite-Lived Intangible Asset, Useful Life   3 years 0 months 0 days    
[1] The acquired intangible assets have estimated useful lives of between 2 and 5 years.
[2] Acquired intangible assets have estimated useful lives of between 3 and 5 years.