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Acquired Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2018
Acquired Intangible Assets [Abstract] |
Acquired Identifiable Intangible Assets | Acquired identifiable intangible assets consist of the following:
|  | March 31, 2018 |  |  | December 31, 2017 |
|  | (In thousands) |
Customer relationships |  | $ | 87,462 |  |  | $ | 87,290 |
Trademarks and trade names |  |  | 6,800 |  |  |  | 6,800 |
Non-compete agreements |  |  | 3,200 |  |  |  | 3,193 |
Patents |  |  | 723 |  |  |  | 723 |
Supply agreements |  |  | 800 |  |  |  | 800 |
Leaseholds |  |  | 160 |  |  |  | 160 |
Total acquired intangible assets |  |  | 99,145 |  |  |  | 98,966 |
Less accumulated amortization (1) |  |  | (45,787 | ) |  |  | (43,853 | )
Net acquired intangible assets |  | $ | 53,358 |  |  | $ | 55,113 |
| (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.

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- Definition Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period. + 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=66006027&loc=d3e16265-109275 + Details
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