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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill for the twelve months ended December 31, 2014, 2015, and 2016 are as follows:
(in thousands) |  |
Balance at December 31, 2013 | $ | 32,073 |
Translation adjustment | (2,217 | )
Goodwill acquired | 45,835 |
Balance at December 31, 2014 | $ | 75,691 |
Translation adjustment | (3,181 | )
Goodwill acquired | $ | 2,999 |
Balance at December 31, 2015 | $ | 75,509 |
Translation adjustment | (684 | )
Balance at December 31, 2016 | $ | 74,825 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + 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 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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