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Basis of Presentation and Summary of Significant Accounting Policies - Gains (Losses) on Foreign Exchange Contracts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cost of Sales [Member] | Foreign Currency Exchange Contract [Member]
Derivative [Line Items]
Realized (losses) gains on closed contracts	$ (6,684)	$ 3,894	$ (10,401)
Unrealized (losses) gains on open contracts	(105)	1,054	(883)
Cumulative net pre-tax (losses) gains	(6,789)	$ 4,948	$ (11,284)
Interest Income [Member] | Cross Currency Interest Rate Contract [Member]
Derivative [Line Items]
Interest earned	2,713
Stockholders' Equity [Member] | Cross Currency Interest Rate Contract [Member]
Derivative [Line Items]
Unrealized (losses) gains on open contracts	$ 1,093

X

- Definition

Amount of increase in the fair value of derivatives recognized in the income statement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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