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Debt and Credit Arrangements - Debt and Credit Arrangements (Parenthetical) (Detail)	Dec. 31, 2015	Dec. 31, 2014
Australian Dollar Denominated Term Loans Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	5.59%	5.59%
Australian Dollar Denominated Secured Notes Short-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.17%
Australian Dollar Denominated Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.185%
Minimum [Member] | USD Denominated Long-term Debt [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	1.29%
Brazilian Real Denominated Secured Notes Short Term Debt [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	5.35%
Brazilian Real Denominated Secured Notes Short Term Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate		3.38%
Brazilian Real Denominated Secured Notes Short Term Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate		3.69%

X

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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+ References

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