Acquisitions

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Acquisitions

Acquisitions

During the six months ended June 30, 2015, we completed various acquisitions and purchases of intangible assets for total consideration of approximately $149 million. In aggregate, $2 million was cash acquired, $52 million was attributed to intangible assets, $55 million was attributed to goodwill, and $40 million was attributed to net assets acquired. These acquisitions generally enhance the breadth and depth of our offerings and expand our expertise in engineering and other functional areas. The amount of goodwill expected to be deductible for tax purposes is approximately $9 million.

Pro forma results of operations for these acquisitions have not been presented because they are not material to the consolidated results of operations, either individually or in aggregate.

For all acquisitions completed during the six months ended June 30, 2015, patents and developed technology have a weighted-average useful life of 4.1 years and trade names and other have a weighted-average useful life of 9.3 years.