Goodwill and Other Intangible Assets - Summary of the Gross and Net Carrying Values of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Indefinite-lived intangible assets
Carrying value	$ 5,011	$ 4,993
Customer Relationships, Customer Contracts, Technology and Other [Member]
Definite-lived intangible assets
Gross amount	28,603	27,940
Accumulated amortization	(25,832)	(25,187)
Carrying value	2,771	2,753
Trade Names And Trademarks [Member]
Indefinite-lived intangible assets
Gross amount	2,240	2,240
Accumulated impairment losses	0	0
Carrying value	$ 2,240	$ 2,240

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 30

-Section 50

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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-Publisher FASB

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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