Balance Sheet Components - Carrying Amount of Goodwill by Geographical Regions (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Balance, Beginning	$ 1,002,129	$ 1,042,153
Purchase accounting adjustments	112,629
Asset held for sale adjustments	(5,000)
Impact of foreign currency exchange	(46,558)	(40,024)
Balance, Ending	1,063,200	1,002,129
Reportable Geographical Components [Member] \| Americas [Member]
Goodwill [Roll Forward]
Balance, Beginning	463,902	471,845
Purchase accounting adjustments	17,192
Asset held for sale adjustments	0
Impact of foreign currency exchange	(20,891)	(7,943)
Balance, Ending	460,203	463,902
Reportable Geographical Components [Member] \| EMEA [Member]
Goodwill [Roll Forward]
Balance, Beginning	404,093	435,041
Purchase accounting adjustments	0
Asset held for sale adjustments	(5,000)
Impact of foreign currency exchange	(25,023)	(30,948)
Balance, Ending	374,070	404,093
Reportable Geographical Components [Member] \| Asia-Pacific [Member]
Goodwill [Roll Forward]
Balance, Beginning	134,134	135,267
Purchase accounting adjustments	95,437
Asset held for sale adjustments	0
Impact of foreign currency exchange	(644)	(1,133)
Balance, Ending	$ 228,927	$ 134,134

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of transfers of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized among segments.

+ References

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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