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Summary of Weighted-Average Assumptions Used in Determining Benefit Obligations (Detail)	Dec. 31, 2016	Dec. 31, 2015
U.S. Benefit Plans
Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items]
Discount rate	4.30%	4.60%
Rate of increase in compensation levels	0.00%	3.50%
Non-U.S. Benefit Plan
Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items]
Discount rate	2.60%	3.70%

X

- Definition

Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items]

+ References

No definition available.

+ Details

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X

- Definition

The interest rate used to adjust for the time value of money for the plan.

+ References

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

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X

- Definition

Expected rate of compensation increases (for pay-related plans).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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