Acquisitions - Schedule of Fair Value of Intangible Assets Acquired (Detail) (Bitstream Inc [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013
Business Acquisition [Line Items]
Total intangible assets	$ 21,770
Customer Relationships [Member]
Business Acquisition [Line Items]
Estimated fair value of amortizable intangible assets	7,280
Acquired Technology [Member]
Business Acquisition [Line Items]
Estimated fair value of amortizable intangible assets	9,230
Trademarks [Member]
Business Acquisition [Line Items]
Estimated fair value of non-amortizable intangible assets	$ 5,260
Minimum [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Useful Life	11 years
Minimum [Member] \| Acquired Technology [Member]
Business Acquisition [Line Items]
Useful Life	7 years
Maximum [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Useful Life	16 years
Maximum [Member] \| Acquired Technology [Member]
Business Acquisition [Line Items]
Useful Life	8 years

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

+ Details

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

+ Details

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

+ References

No definition available.

+ Details

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