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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2015 | Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | $ 248,416 | $ 248,416 | $ 252,520
Impairment loss |  | 723 |
North American Segment |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 196,500 | 196,500 |
European Segment |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 49,900 | 49,900 |
International Segment |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 2,000 | $ 2,000 |
Other Income | North American Segment |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Impairment loss | $ 700 |  |

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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 -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 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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