Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets The changes in the net carrying amount of goodwill for the nine months ended September 30, 2015 are as follows: Balance as of December 31, 2014 $ 256,232 Goodwill resulting from business acquisitions 5,369 Reduction in goodwill resulting from a business acquisition purchase price allocation adjustment (525 ) Foreign currency translation (321 ) Balance as of September 30, 2015 $ 260,755 Assets and liabilities of acquired businesses are recorded at their estimated fair values as of the date of acquisition. Goodwill represents costs in excess of fair values assigned to the underlying net assets of acquired businesses. During the nine months ended September 30, 2015 , the Company entered into three acquisitions totaling a cash purchase price of $6.1 million . Goodwill resulting from business acquisitions in the nine months ended September 30, 2015 amounted to $5.4 million . The purchase price in a prior acquisition was allocated based on information available at the acquisition date. During the quarter ended March 31, 2015, we recorded a measurement period adjustment, which reduced goodwill by $0.5 million . The amount was not considered material and therefore prior periods have not been revised. Other intangible assets consist of the following: September 30, 2015 December 31, 2014 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Amortized intangible assets: Customer relationships $ 136,898 $ (63,260 ) $ 136,126 $ (59,707 ) Promotional, marketing and distribution rights 149,376 (22,500 ) 149,376 (18,000 ) Patents and other intangible assets 63,423 (42,422 ) 63,464 (41,363 ) Unamortized intangible assets : Trademarks and tradenames 86,544 — 86,544 — $ 436,241 $ (128,182 ) $ 435,510 $ (119,070 ) Customer relationships, trademarks and tradenames and patents and other intangible assets primarily represent allocations of purchase price to identifiable intangible assets of acquired businesses. Promotional, marketing and distribution rights represent intangible assets created under our Sports Medicine Joint Development and Distribution Agreement (the "JDDA") with Musculoskeletal Transplant Foundation (“MTF”). On January 3, 2012, the Company entered into the JDDA with MTF to obtain MTF's worldwide promotion rights with respect to allograft tissues within the field of sports medicine and related products. The initial consideration from the Company included a $63.0 million up-front payment for the rights and certain assets, with an additional $84.0 million contingently payable over a four year period depending on MTF meeting supply targets for tissue. On January 5, 2015 and January 3, 2014, we paid equal installments of $16.7 million and on January 3, 2013, we paid $34.0 million of the additional consideration. The remaining $16.7 million of the additional consideration is due in January 2016 and is accrued in other current liabilities as we believe it is probable MTF will meet the supply targets. On July 30, 2014, the Company purchased the stock of EndoDynamix, Inc., a developer of minimally invasive surgical instruments. The purchase price included $13.9 million in contingent consideration based upon certain milestones being achieved totaling $10.3 million and future royalties to be incurred of $3.6 million . Contingent consideration was valued using a discounted cash flow method. We paid $3.7 million of the milestone payment on October 17, 2014 and another $2.4 million payment on April 13, 2015. We expect the remaining milestones to be achieved, and royalty payments to be made, between 2016 and 2021. The remaining contingent consideration totaled $7.8 million as of September 30, 2015 and is included in other current and other long term liabilities. Amortization expense related to intangible assets which are subject to amortization totaled $3.1 million and $3.3 million in the three months ended September 30, 2015 and 2014 , respectively, and $9.5 million and $9.8 million in the nine months ended September 30, 2015 and 2014 , respectively, and is included as a reduction of revenue (for amortization related to our promotional, marketing and distribution rights) and in selling and administrative expense (for all other intangible assets) in the consolidated condensed statements of comprehensive income. The weighted average amortization period for intangible assets which are amortized is 27 years. Customer relationships are being amortized over a weighted average life of 34 years. Promotional, marketing and distribution rights are being amortized over a weighted average life of 25 years. Patents and other intangible assets are being amortized over a weighted average life of 14 years. Included in patents and other intangible assets at September 30, 2015 is an in-process research and development asset related to the EndoDynamix, Inc. acquisition that is not currently amortized. The estimated intangible asset amortization expense remaining for the year ending December 31, 2015 and for each of the five succeeding years is as follows: Amortization included in expense Amortization recorded as a reduction of revenue Total Remaining, 2015 $ 1,436 $ 1,500 $ 2,936 2016 6,877 6,000 12,877 2017 7,309 6,000 13,309 2018 7,279 6,000 13,279 2019 7,279 6,000 13,279 2020 7,186 6,000 13,186 |