XML 43 R30.htm IDEA: XBRL DOCUMENT v3.8.0.1
Schedule of Tax Effects Allocated to Each Component of Other Comprehensive Income (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Components Of Other Comprehensive Income Loss [Line Items]    
Foreign currency translation adjustment $ (6,645) $ 2,155
Unrealized gain (loss) on cash flow hedging instruments 207 (423)
Income tax (expense) benefit (56) 114
Unrealized gain (loss) on cash flow hedging instruments, net of tax 151 (309)
Reclassification of loss (gain) on cash flow hedging instruments into earnings 1,031 (243)
Income tax (benefit) expense (278) 65
Reclassification of loss (gain) on cash flow hedging instruments into earnings, net of tax 753 (178)
Unrealized gain on available-for-sale securities   13
Income tax expense   (5)
Unrealized gain on available-for-sale securities, net of tax   8
Other comprehensive (loss) income $ (5,741) $ 1,676