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Schedule of Business Acquisition - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Dec. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2015
Acquisitions |  |  |
Maximum period for payment for adjustments to provisional fair value measurements |  | 1 year |
Goodwill | $ 123,950 | $ 125,614 | $ 122,923
North America |  |  |
Acquisitions |  |  |
Goodwill | 85,834 | $ 86,038 | $ 84,216
North America | EBTY |  |  |
Acquisitions |  |  |
Payments to acquire business | 3,400 |  |
Goodwill | 2,000 |  |
Business combination, intangible assets acquired | $ 1,100 |  |
Business combination, intangible assets acquired, weighted average useful life | 7 years |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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