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Goodwill and Intangible Assets | 12 Months Ended
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Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | GOODWILL AND INTANGIBLE ASSETS The changes in the carrying amount of goodwill for the years ended December 31, 2012 and 2011, are as follows (in thousands):
| 2012 |  | 2011
Goodwill balance at January 1 | $ | 61,144 |  |  | $ | 58,675 |
Adjustment related to previous acquisitions | 280 |  |  | (228 | )
Additions as the result of acquisitions | 113,684 |  |  | 2,697 |
Goodwill balance at December 31 | $ | 175,108 |  |  | $ | 61,144 |
During our annual test of goodwill balances in 2010, which was completed during the third quarter, we determined that our goodwill related to our endoscopy reporting unit was impaired. We determined that, based on estimated future cash flows for this reporting unit, discounted back to their present value using a discount rate that reflects the risk profiles of the underlying activities, the carrying value amount of this reporting unit was more than its estimated fair value. Some of the factors that influenced our estimated cash flows were slower sales growth in the products acquired from our Alveolus acquisition in March of 2009, uncertainty regarding acceptance of new products and continued operating losses in our endoscopy business segment. During the year ended December 31, 2010, we recorded an impairment charge of approximately $8.3 million, which was offset by approximately $3.2 million of deferred tax asset. As of December 31, 2012 and 2011, total accumulated goodwill impairment loss was approximately $8.3 million, all of which is related to the endoscopy segment. The remaining goodwill balance at December 31, 2012 and 2011 relates entirely to our cardiovascular segment. Other intangible assets at December 31, 2012 and 2011, consisted of the following (in thousands):
| 2012
| Gross |  |  |  | Net
| Carrying Amount |  | Accumulated Amortization |  | Carrying Amount
Patents | $ | 7,843 |  |  | $ | (2,045 | ) |  | $ | 5,798 |
Distribution agreement | 5,176 |  |  | (1,301 | ) |  | 3,875 |
License agreements | 2,733 |  |  | (861 | ) |  | 1,872 |
Trademarks | 7,311 |  |  | (1,362 | ) |  | 5,949 |
Covenant not to compete | 1,035 |  |  | (160 | ) |  | 875 |
Customer lists | 20,468 |  |  | (8,038 | ) |  | 12,430 |
Royalty agreements | 267 |  |  | (267 | ) |  | — |
Total | $ | 44,833 |  |  | $ | (14,034 | ) |  | $ | 30,799 |
| 2011
| Gross |  |  |  | Net
| Carrying Amount |  | Accumulated Amortization |  | Carrying Amount
Patents | $ | 6,455 |  |  | $ | (1,704 | ) |  | $ | 4,751 |
Distribution agreement | 2,426 |  |  | (900 | ) |  | 1,526 |
License agreements | 1,983 |  |  | (436 | ) |  | 1,547 |
Trademarks | 5,746 |  |  | (1,014 | ) |  | 4,732 |
Covenant not to compete | 315 |  |  | (108 | ) |  | 207 |
Customer lists | 14,277 |  |  | (5,786 | ) |  | 8,491 |
Royalty agreements | 267 |  |  | (267 | ) |  | — |
Total | $ | 31,469 |  |  | $ | (10,215 | ) |  | $ | 21,254 |
Aggregate amortization expense for the years ended December 31, 2012, 2011 and 2010 was approximately $7.5 million, $6.0 million and $3.5 million, respectively. Estimated amortization expense for the intangible assets for the next five years consists of the following as of December 31, 2012 (in thousands):
Year Ending December 31 |
2013 | $ | 13,934 |
2014 | 13,264 |
2015 | 12,738 |
2016 | 12,274 |
2017 | 11,917 |

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- Definition The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. + References Reference 1: 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=7658586&loc=d3e16373-109275 Reference 2: 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=7658586&loc=d3e16265-109275 Reference 3: 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=7658586&loc=d3e16323-109275 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 43, 44, 45, 46, 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: 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 Reference 6: 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 + Details
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