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Condensed Consolidated Financial Statements - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016
Goodwill [Line Items] |  |
Gross Balance prior to the end of year |  | $ 957,123
Total impairment, beginning of period |  | (47,432)
Beginning Balance | $ 909,691 |
Foreign currency translation adjustments | 3,323 |
Ending Balance | 913,014 |
Americas Segment [Member] |  |
Goodwill [Line Items] |  |
Gross Balance prior to the end of year |  | 524,829
Total impairment, beginning of period |  | (47,432)
Beginning Balance | 477,397 |
Foreign currency translation adjustments | 293 |
Ending Balance | 477,690 |
EMEA Segment [Member] |  |
Goodwill [Line Items] |  |
Gross Balance prior to the end of year |  | 374,130
Beginning Balance | 374,130 |
Foreign currency translation adjustments | 574 |
Ending Balance | 374,704 |
Asia/Pacific Segment [Member] |  |
Goodwill [Line Items] |  |
Gross Balance prior to the end of year |  | $ 58,164
Beginning Balance | 58,164 |
Foreign currency translation adjustments | 2,456 |
Ending Balance | $ 60,620 |

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- Definition 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. + 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 (a) -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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits 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 + Details
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