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Income Tax Effects Related to Components of Other Comprehensive Loss (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accumulated Other Comprehensive Income Loss [Line Items]      
Foreign currency translation adjustments, Before-Tax Amount $ (1,528) $ (2,381) $ (529)
Net change in unrealized (losses) gains on available for sale securities, Before-Tax Amount (56,359) (228) 25
Derivatives qualifying as cash flow hedges, net gain (loss), Before-Tax Amount 597 424 458
Other comprehensive loss, Before-Tax Amount (57,290) (2,185) (46)
Foreign currency translation adjustments, Tax Effect 0 0 0
Other comprehensive loss, Tax Effect (297) (78) (188)
Foreign currency translation adjustments, Net (1,528) (2,381) (529)
Other comprehensive loss, Net (57,587) (2,263) (234)
Unrealized Net Gains (Losses) on Available for Sale Securities [Member]      
Accumulated Other Comprehensive Income Loss [Line Items]      
Available for sale securities, net gain (loss) arising during the period, Before-Tax Amount (56,359) 0 25
Available for sale securities, net (gain) loss reclassified into income, Before-Tax Amount 0 (228) 0
Net change in unrealized (losses) gains on available for sale securities, Before-Tax Amount (56,359) (228) 25
Available for sale securities, net gain (loss) arising during the period, Tax Effect (61) 0 (9)
Available for sale securities, net (gain) loss reclassified into income, Tax Effect 0 88 0
Net change in unrealized (losses) gains on available for sale securities, Tax Effect (61) 88 (9)
Available for sale securities, net gain (loss) arising during the period, Net (56,420) 0 16
Available for sale securities, net (gain) loss reclassified into income, Net 0 (140) 0
Net change in unrealized (losses) gains on available for sale securities, Net (56,420) (140) 16
Other comprehensive loss, Net (56,420) (140) 16
Derivatives Qualifying as Cash Flow Hedges [Member]      
Accumulated Other Comprehensive Income Loss [Line Items]      
Derivatives qualifying as cash flow hedges, net gain (loss), Before-Tax Amount 597 424 458
Derivatives qualifying as cash flow hedges, net gain (loss), Tax Effect (236) (166) (179)
Derivatives qualifying as cash flow hedges, net gain (loss), Net 361 258 279
Derivatives Qualifying as Cash Flow Hedges [Member] | Interest Rate Swap [Member]      
Accumulated Other Comprehensive Income Loss [Line Items]      
Derivatives qualifying as cash flow hedges, net gains (losses) arising during the period, Before-Tax Amount     (38)
Derivatives qualifying as cash flow hedges, net (gains) losses reclassified into income, Before-Tax Amount     496
Derivatives qualifying as cash flow hedges, net gain (loss), Before-Tax Amount     458
Derivatives qualifying as cash flow hedges, net gains (losses) arising during the period, Tax Effect     15
Derivatives qualifying as cash flow hedges, net (gains) losses reclassified into income, Tax Effect     (194)
Derivatives qualifying as cash flow hedges, net gain (loss), Tax Effect     (179)
Derivatives qualifying as cash flow hedges, net gains (losses) arising during the period, Net     (23)
Derivatives qualifying as cash flow hedges, net (gains) losses reclassified into income, Net     302
Derivatives qualifying as cash flow hedges, net gain (loss), Net     279
Other comprehensive loss, Net 0 0 279
Derivatives Qualifying as Cash Flow Hedges [Member] | Foreign Exchange Contract [Member]      
Accumulated Other Comprehensive Income Loss [Line Items]      
Derivatives qualifying as cash flow hedges, net gains (losses) arising during the period, Before-Tax Amount 1,128 314  
Derivatives qualifying as cash flow hedges, net (gains) losses reclassified into income, Before-Tax Amount (531) 110  
Derivatives qualifying as cash flow hedges, net gain (loss), Before-Tax Amount 597 424  
Derivatives qualifying as cash flow hedges, net gains (losses) arising during the period, Tax Effect (445) (123)  
Derivatives qualifying as cash flow hedges, net (gains) losses reclassified into income, Tax Effect 209 (43)  
Derivatives qualifying as cash flow hedges, net gain (loss), Tax Effect (236) (166)  
Derivatives qualifying as cash flow hedges, net gains (losses) arising during the period, Net 683 191  
Derivatives qualifying as cash flow hedges, net (gains) losses reclassified into income, Net (322) 67  
Derivatives qualifying as cash flow hedges, net gain (loss), Net 361 258  
Other comprehensive loss, Net $ 361 $ 258 $ 0