Restructuring and Asset Impairments	12 Months Ended
Dec. 31, 2014
Restructuring and Asset Impairments	3. Restructuring and Asset Impairments Restructuring During the fourth quarter of 2012, the company committed to a plan (the “2012 Restructuring Plan”) which included the elimination of certain positions and other terminations worldwide. In connection with this plan, the company recorded employee separation costs under the company’s existing severance programs and other costs related to one-time termination benefits of $19.2 million ($13.0 million after tax). Substantially all of these costs were cash expenditures paid by the end of 2013. In addition, $2.1 million of these restructuring costs were reversed in 2013. Asset Impairments During 2014, the company recorded $6.8 million ($4.3 million after tax) to research and development expense for the impairment of IPR&D projects, primarily due to changes in cash flow assumptions. During 2013, the company recorded asset impairment charges totaling $12.3 million ($9.5 million after tax). The company recorded $6.4 million ($4.9 million after tax) to other (income) expense, net, for the write-down of certain core technologies; $3.4 million ($2.2 million after tax) to research and development expense for the impairment of an IPR&D project; and $2.5 million ($2.4 million after tax) to cost of goods sold related primarily to the write-down of manufacturing related equipment and inventory. During 2012, the company recorded to other (income) expense, net, asset impairment charges totaling $22.2 million ($13.8 million after tax). These charges consisted of a write-down of $13.2 million ($8.0 million after tax) related to certain core technologies and impairments of $9.0 million ($5.8 million after tax) of assets not related to operations. Asset impairment charges were measured at fair value using significant unobservable inputs that are categorized as Level 3 under the fair value hierarchy, which is described further in Note 6 of the notes to consolidated financial statements.

3. Restructuring and Asset Impairments

Restructuring

During the fourth quarter of 2012, the company committed to a plan (the “2012 Restructuring Plan”) which included the elimination of certain positions and other terminations worldwide. In connection with this plan, the company recorded employee separation costs under the company’s existing severance programs and other costs related to one-time termination benefits of $19.2 million ($13.0 million after tax). Substantially all of these costs were cash expenditures paid by the end of 2013. In addition, $2.1 million of these restructuring costs were reversed in 2013.

Asset Impairments

During 2014, the company recorded $6.8 million ($4.3 million after tax) to research and development expense for the impairment of IPR&D projects, primarily due to changes in cash flow assumptions.

During 2013, the company recorded asset impairment charges totaling $12.3 million ($9.5 million after tax). The company recorded $6.4 million ($4.9 million after tax) to other (income) expense, net, for the write-down of certain core technologies; $3.4 million ($2.2 million after tax) to research and development expense for the impairment of an IPR&D project; and $2.5 million ($2.4 million after tax) to cost of goods sold related primarily to the write-down of manufacturing related equipment and inventory.

During 2012, the company recorded to other (income) expense, net, asset impairment charges totaling $22.2 million ($13.8 million after tax). These charges consisted of a write-down of $13.2 million ($8.0 million after tax) related to certain core technologies and impairments of $9.0 million ($5.8 million after tax) of assets not related to operations.

Asset impairment charges were measured at fair value using significant unobservable inputs that are categorized as Level 3 under the fair value hierarchy, which is described further in Note 6 of the notes to consolidated financial statements.