Other Accrued Expenses and Current Liabilities - Other Accrued Expenses and Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Accrued Expenses And Current Liabilities [Line Items]
Customer deposits	$ 2,418	$ 7,350
Accrued restructuring (Note 4)	1,245	1,401
Accrued legal and professional fees	3,220	4,231
Accrued telephone charges	1,475	1,943
Accrued roadside assistance claim costs	2,341	2,288
Accrued rent	2,057	1,367
Other	12,574	11,774
Total	30,393	31,320
Derivatives Designated as Cash Flow Hedging Instruments under ASC 815 [Member] | Foreign Currency Forward Contracts [Member] | Option Contracts [Member] | Other Accrued Expenses and Current Liabilities [Member]
Other Accrued Expenses And Current Liabilities [Line Items]
Foreign currency forward and option contracts (Note 12)	$ 5,063	$ 966