Acquisitions - Additional Information (Detail) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended	0 Months Ended
Dec. 20, 2013 Sunbank Family Of Companies LLC. USD ($)	Jan. 30, 2015 Belgium-based Barco N V USD ($)	Jan. 31, 2015 Belgium-based Barco N V Subsequent Event USD ($)	Jan. 31, 2015 Belgium-based Barco N V Subsequent Event EUR (€)
Business Acquisition [Line Items]
Business acquired	$ 51.7	$ 170.0	$ 170.0	€ 150.0
Foreign currency exchange loss		(2.9)
Contingent consideration	$ 5
Contingent consideration achievement period of certain sales levels	2 years

Business combination contingent consideration arrangements range of outcomes period.

No definition available.

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

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- Definition

Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30690-110894

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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