XML 85 R69.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Deferred tax assets:    
Net operating loss carryforwards $ 7,555 $ 8,041
Share-based compensation 16,321 21,503
Accounts receivable 480 392
Accrued expenses and other current liabilities 1,128 43
Others 22 11
Deferred Tax Assets, Gross, Total 25,506 29,990
Valuation allowance (10,853) (1,881)
Deferred tax assets, net of valuation allowance 14,653 28,109
Deferred tax liabilities:    
Intangible assets 14,505 27,962
Property and equipment 148 117
Internal Revenue Code Sec. 481 adjustment   30
Deferred Tax Liabilities, Gross, Total $ 14,653 $ 28,109