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Guarantees and Indemnifications (Detail) $ in Thousands	Dec. 31, 2016 USD ($)
Guarantor Obligations [Line Items]
Guarantees and Indemnifications Outstanding Amount, Expires Within One Year	$ 38,293
Guarantees and Indemnifications Outstanding Amount, Expires After One Year	51,331
Guarantees and Indemnifications, Total Outstanding Amount	89,624
Guarantees and Indemnifications, Maximum Potential Amount of Future Payments	324,288
Financial Standby Letter of Credit
Guarantor Obligations [Line Items]
Guarantees and Indemnifications Outstanding Amount, Expires Within One Year	25,574
Guarantees and Indemnifications Outstanding Amount, Expires After One Year	51,279
Guarantees and Indemnifications, Total Outstanding Amount	76,853
Guarantees and Indemnifications, Maximum Potential Amount of Future Payments	237,870
Performance Guarantee
Guarantor Obligations [Line Items]
Guarantees and Indemnifications Outstanding Amount, Expires Within One Year	8,891
Guarantees and Indemnifications, Total Outstanding Amount	8,891
Guarantees and Indemnifications, Maximum Potential Amount of Future Payments	7,880
Commercial Letters of Credit
Guarantor Obligations [Line Items]
Guarantees and Indemnifications Outstanding Amount, Expires Within One Year	3,828
Guarantees and Indemnifications Outstanding Amount, Expires After One Year	52
Guarantees and Indemnifications, Total Outstanding Amount	3,880
Guarantees and Indemnifications, Maximum Potential Amount of Future Payments	$ 78,538

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- Definition

Guarantee Obligations, Carrying Value

+ References

No definition available.

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- Definition

Guarantee Obligations, Noncurrent Carrying Value

+ References

No definition available.

+ Details

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

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