Trade Accounts Receivable, Net - Additional Information (Detail)	12 Months Ended
Dec. 31, 2018 USD ($) Customer	Dec. 31, 2017 USD ($) Customer	Dec. 31, 2016 USD ($) Customer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable, bad debt expense	$ 0	$ 0	$ 3,000,000
Receivables sold without recourse	$ 0	$ 0
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Share of companies in consolidated net revenues	13.10%	10.50%	10.00%
Number of customers \| Customer	1	1	0

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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