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Acquired Intangible Assets | 3 Months Ended
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Mar. 31, 2014
Acquired Intangible Assets [Abstract] |
Acquired Intangible Assets |
Note 7. | Acquired Intangible Assets
Acquired identifiable intangible assets consist of the following:
|  | March 31, 2014 |  |  | December 31, 2013 |
|  | (In thousands) |
Customer relationships |  | $ | 44,219 |  |  | $ | 44,179 |
Trademarks and trade names |  |  | 6,800 |  |  |  | 6,800 |
Non-compete agreements |  |  | 910 |  |  |  | 910 |
Patents and supply contracts |  |  | 723 |  |  |  | 723 |
Leaseholds |  |  | 160 |  |  |  | 160 |
Total acquired intangible assets |  |  | 52,812 |  |  |  | 52,772 |
Less accumulated amortization (1) |  |  | (20,353 | ) |  |  | (19,202 | )
Net acquired intangible assets |  | $ | 32,459 |  |  | $ | 33,570 |
| (1) | Applies to all intangible assets, except for trademarks and trade names totaling $5.2 million, which have indefinite useful lives and, as such, are not being amortized.
Total amortization expense for acquired intangible assets was $1.1 million and $1.3 million for the three months ended March 31, 2014 and 2013, respectively. Based on the current estimated useful lives assigned to our intangible assets, amortization expense is estimated to be $3.4 million for the remainder of 2014, $4.3 million in 2015, $4.2 million in 2016 and $15.4 million in the aggregate for the years 2017 through 2028.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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