Commitments, Contingencies and Guarantees - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2014
Commitments And Contingencies Disclosure [Abstract]
Contingency reserve	$ 5,272	$ 15,000	$ 20,272
Payments against liability			6,000
Remaining liability	$ 14,272		$ 14,272

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Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

+ Details

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- Definition

Amount of payments made reducing loss contingency liability.

+ References

+ Details

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- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

+ Details

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