v2.4.0.8
Segment Information - Reconciliation of Adjusted EBITDA to Loss from Continuing Operations (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Sep. 30, 2013
Mar. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]      
Adjusted EBITDA $ 183,717   $ 192,503
Adjusted Gross Margin 342,722   352,565
Less Adjustments:      
Selling, general and administrative 198,877 [1]   199,829 [1]
Cost of revenue adjustments:      
Depreciation and amortization 60,807   52,512
Amortization of upfront incentive consideration 11,047   9,599
Restructuring and other costs 1,216   591
Litigation and taxes, including penalties 606   11,848
Stock-based compensation 1,506   458
Amortization of Expedia SMA incentive payments 1,875     
Operating income 66,788   77,728
Amortization of upfront incentive payments 11,047   9,599
Interest expense, net 63,944 14,000 82,530
Loss on extinguishment of debt 2,980   12,181
Other, net 887   (5,126)
Restructuring and other costs 1,216   591
Litigation and taxes, including penalties 606   11,848
Stock-based compensation 5,579   2,724
Amortization of Expedia SMA incentive payments 1,875     
Provision (benefit) for income taxes 2,417   (4,948)
Loss from continuing operations (999)   (4,163)
EBITDA [Member]
      
Segment Reporting, Revenue Reconciling Item [Line Items]      
Adjusted EBITDA 183,717   192,503
Depreciation and amortization of property and equipment 41,581   33,347
Cost of revenue adjustments:      
Amortization of upfront incentive consideration 11,047   9,599
Restructuring and other costs 2,708   2,166
Litigation and taxes, including penalties 5,152   14,638
Amortization of Expedia SMA incentive payments 1,875     
Amortization of capitalized implementation costs 9,136   10,881
Amortization of upfront incentive payments 11,047   9,599
Interest expense, net 63,944   82,530
Acquisition related amortization 35,478   35,952
Loss on extinguishment of debt 2,980   12,181
Other, net 887   (5,126)
Restructuring and other costs 2,708   2,166
Litigation and taxes, including penalties 5,152   14,638
Stock-based compensation 5,579   2,724
Management fees 1,932   2,722
Amortization of Expedia SMA incentive payments 1,875     
Provision (benefit) for income taxes 2,417   (4,948)
Loss from continuing operations $ (999)   $ (4,163)
[1] Includes stock-based compensation as follows: Cost of revenue $ 1,506 $ 458 Selling, general and administrative $ 4,073 $ 2,266