Acquisition	12 Months Ended
Jan. 31, 2017
Business Combinations [Abstract]
Acquisition	5. Acquisition On June 25, 2015, the Company completed the acquisition of VisLab S.r.l. (“VisLab”), a privately held Italian company that develops computer vision and intelligent control systems for automotive and other commercial applications, including advanced driver assistance systems and several generations of autonomous vehicle driving systems, for $30.0 million in cash. This acquisition will enable extensive and robust computer vision support in future solutions targeting the Company's core markets, including automotive, IP security, wearable, and UAV cameras. Of the total purchase price of $30.0 million, $4.1 million was attributed to intangible assets, $25.3 million was attributed to goodwill, and $0.6 million was attributed to net assets acquired. The goodwill represents the excess of the fair value of purchase price over the fair values of these identifiable assets and liabilities and primarily represents the intangible assets that do not qualify for separate recognition and the future development initiatives of the assembled workforces. Goodwill is not deductible for tax purposes. Pro forma results of operations for this acquisition have not been presented because they are not material to the consolidated results of operations.

Acquisition

12 Months Ended

Jan. 31, 2017

5. Acquisition

On June 25, 2015, the Company completed the acquisition of VisLab S.r.l. (“VisLab”), a privately held Italian company that develops computer vision and intelligent control systems for automotive and other commercial applications, including advanced driver assistance systems and several generations of autonomous vehicle driving systems, for $30.0 million in cash. This acquisition will enable extensive and robust computer vision support in future solutions targeting the Company's core markets, including automotive, IP security, wearable, and UAV cameras. Of the total purchase price of $30.0 million, $4.1 million was attributed to intangible assets, $25.3 million was attributed to goodwill, and $0.6 million was attributed to net assets acquired. The goodwill represents the excess of the fair value of purchase price over the fair values of these identifiable assets and liabilities and primarily represents the intangible assets that do not qualify for separate recognition and the future development initiatives of the assembled workforces. Goodwill is not deductible for tax purposes.

Pro forma results of operations for this acquisition have not been presented because they are not material to the consolidated results of operations.