Annual report pursuant to Section 13 and 15(d)

Income Taxes - Income Tax Reconciliation (Details)

v3.7.0.1
Income Taxes - Income Tax Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Entity Location [Line Items]      
Income (Loss) from Continuing Operations before Income Taxes, Foreign $ 67,183 $ 55,613 $ 16,134
Income tax at federal statutory rate 22,427 16,250 7,016
Effect of permanent differences 12,496 370 9
Change in valuation allowance (3,877) 2,017 (2,070)
Foreign rate differential (21,713) (18,099) (5,240)
Other reconciling items (342) 14 551
Income tax provision 8,991 552 266
CAYMAN ISLANDS      
Entity Location [Line Items]      
Income (Loss) from Continuing Operations before Income Taxes, Foreign $ 58,169 50,993 16,267
statutorytaxrate 0.00%    
Hong Kong      
Entity Location [Line Items]      
Income (Loss) from Continuing Operations before Income Taxes, Foreign $ 3,992 2,645 1,129
statutorytaxrate 16.50%    
China      
Entity Location [Line Items]      
Income (Loss) from Continuing Operations before Income Taxes, Foreign $ 3,855 $ 1,493 $ 153
statutorytaxrate 25.00%