Income Taxes (Narrative) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2016	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate	(10.30%)	24.20%	29.10%	30.10%
U.S. federal statutory income tax rate			35.00%	35.00%
Unrecognized tax benefits	$ 8,818		$ 8,818			$ 0
Accrued interest and penalties on tax	$ 206		$ 206
Scenario, Forecast [Member]
Income Tax Examination [Line Items]
Undistributed earnings of foreign subsidiaries					$ 204,154
Unremitted foreign earnings income tax expense					32,272
Deferred tax liability					1,837
Scenario, Forecast [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Deferred tax liability					1,169
Scenario, Forecast [Member] | Taiwan [Member]
Income Tax Examination [Line Items]
Deferred tax liability					$ 668