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Goodwill (Tables) | 3 Months Ended
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Mar. 31, 2014
Summary of Changes in Carrying Amount of Goodwill | The changes in the carrying amount of goodwill consisted of the following (in thousands):
| Three Months |
| Ended |
| March 31, 2014 |
Beginning balance | $ | 143,955 |
Goodwill acquired during the period |  | 125 |
Goodwill allocated to specific assets for business acquired in first six months of 2013 |  | (1,680 | )
Goodwill adjustments for purchase price allocation of businesses acquired |  | 117 |
Ending balance | $ | 142,517 |

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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=14024403&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=14024403&loc=d3e13854-109267 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration