Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax [Line Items]
US federal corporate income tax rate	21.00%	35.00%
Valuation allowance for deferred tax assets	$ 1,300.0
Unrecognized tax benefits reduce effective tax rate	49.0
Liabilities recorded for payment of tax-related interest and penalties	20.0	$ 24.0	$ 20.0
Malaysia [Member]
Income Tax [Line Items]
Reduction in income tax expense related to tax holiday	$ 17.5	$ 7.0
Income tax holiday, effective date	Which is effective through December 31, 2020
Income tax holiday period	5 years
Income tax holiday, description	We operate under a tax holiday in Malaysia, effective through December 31, 2020, which may be extended for an additional five years if we satisfy certain requirements.
Income tax holiday, income tax benefits on net income per share (diluted)	$ 120