Other Accrued Expenses and Current Liabilities - Other Accrued Expenses and Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Accrued legal and professional fees	$ 3,079	$ 4,508
Accrued rent	1,812	640
Accrued roadside assistance claim costs	1,405	1,878
Accrued telephone charges	1,381	1,068
Accrued utilities	1,097	1,329
Accrued equipment and software	935	2,196
Customer deposits	714	793
Accrued restructuring (Note 3)	631	630
Other	9,587	7,913
Total	21,476	22,216
Other Accrued Expenses and Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign currency forward and option contracts (Note 10)	835	1,261
Accrued restructuring (Note 3)	$ 631	$ 630