Employee Benefit Plans - Additional Information (Detail) $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Amount of gains and losses to be amortized to the extent that they exceed 10% of the higher of the market-related value or the projected benefit obligation of each respective plan	10.00%
Foreign Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Estimated benefits in the next fiscal year	$ 5

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration