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Changes in Carrying Values of Goodwill (Detail) $ in Thousands | 6 Months Ended
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Jun. 30, 2018 USD ($)
Goodwill [Line Items] |
Beginning balance | $ 156,281
Effect of exchange rate changes | (3,151)
Ending balance | 153,130
North America |
Goodwill [Line Items] |
Beginning balance | 140,389
Effect of exchange rate changes | (1,833)
Ending balance | 138,556
Continental Europe |
Goodwill [Line Items] |
Beginning balance | 7,759
Effect of exchange rate changes | (428)
Ending balance | 7,331
United Kingdom |
Goodwill [Line Items] |
Beginning balance | 1,253
Effect of exchange rate changes | (29)
Ending balance | 1,224
Other |
Goodwill [Line Items] |
Beginning balance | 6,880
Effect of exchange rate changes | (861)
Ending balance | $ 6,019

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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