Goodwill and Other Intangibles - Estimated Amortization Expense for the Remainder of 2013 and Each of the Five Succeeding Fiscal Years (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization Expense, Remainder of Fiscal Year 2013	$ 356
Amortization Expense, Fiscal Year 2014	1,224
Amortization Expense, Fiscal Year 2015	963
Amortization Expense, Fiscal Year 2016	817
Amortization Expense, Fiscal Year 2017	559
Amortization Expense, Fiscal Year 2018	$ 446

Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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