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Goodwill and Identifiable Intangible Assets, Net (Tables) | 9 Months Ended
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Sep. 30, 2013
Goodwill and Identifiable Intangible Assets, Net |
Schedule of changes in the carrying amount of goodwill | The changes in the carrying amount of goodwill are as follows (in thousands):
|  | September 30, 2013 |  | December 31, 2012 |
--- | --- | --- | --- | --- | ---
Balance at beginning of year |  | $ | 114,588 |  | $ | 107,093 |
Additions |  |  | — |  |  | 7,495 |
Balance at end of period |  | $ | 114,588 |  | $ | 114,588 |
Schedule of components of identifiable intangible assets | Identifiable intangible assets consist of the following (dollars in thousands):
|  |  |  | September 30, 2013 |  | December 31, 2012 |
--- | --- | --- | --- | --- | --- | --- | ---
|  | Estimated Useful Lives in Years |  | Gross Book Value |  | Accumulated Amortization |  | Gross Book Value |  | Accumulated Amortization |
Customer relationships |  | 1 - 15 |  | $ | 40,404 |  | $ | (19,639 | ) | $ | 40,404 |  | $ | (15,579 | )
Backlog |  | 1 - 2 |  |  | 6,515 |  |  | (6,515 | ) |  | 6,515 |  |  | (6,375 | )
Noncompete agreements |  | 2 - 7 |  |  | 2,890 |  |  | (2,594 | ) |  | 2,890 |  |  | (2,380 | )
Tradenames |  | 2 - 25 |  |  | 23,695 |  |  | (5,649 | ) |  | 23,695 |  |  | (4,655 | )
Total |  |  |  | $ | 73,504 |  | $ | (34,397 | ) | $ | 73,504 |  | $ | (28,989 | )

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + 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) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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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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