|
Discontinued Operations - Summary of Selected Financial Information of Business Units (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended | 12 Months Ended | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jan. 31, 2014
|
Jan. 31, 2013
|
Jan. 31, 2012
|
Jan. 31, 2014
Products [Member]
|
Jan. 31, 2013
Products [Member]
|
Jan. 31, 2012
Products [Member]
|
Jan. 31, 2013
Services [Member]
|
Jan. 31, 2012
Services [Member]
|
May 04, 2012
Servers and Storage [Member]
|
Jan. 31, 2014
Servers and Storage [Member]
|
Jan. 31, 2013
Servers and Storage [Member]
|
Jan. 31, 2012
Servers and Storage [Member]
|
Jan. 31, 2014
Servers and Storage [Member]
Products [Member]
|
Jan. 31, 2013
Servers and Storage [Member]
Products [Member]
|
Jan. 31, 2012
Servers and Storage [Member]
Products [Member]
|
Jan. 31, 2013
Servers and Storage [Member]
Services [Member]
|
Jan. 31, 2012
Servers and Storage [Member]
Services [Member]
|
May 21, 2012
Media Services [Member]
|
Mar. 31, 2013
Media Services [Member]
|
Jan. 31, 2014
Media Services [Member]
|
Jan. 31, 2013
Media Services [Member]
|
Jan. 31, 2012
Media Services [Member]
|
Jan. 31, 2014
Media Services [Member]
Products [Member]
|
Jan. 31, 2014
Media Services [Member]
Services [Member]
|
Jan. 31, 2013
Media Services [Member]
Services [Member]
|
Jan. 31, 2012
Media Services [Member]
Services [Member]
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | ||||||||||||||||||||||||||
| Total revenues | $ 46 | $ 11,181 | $ 44,792 | $ 46 | $ 1,031 | $ 6,159 | $ 10,150 | $ 38,633 | $ 4,900 | $ 46 | $ 1,866 | $ 11,879 | $ 46 | $ 1,031 | $ 6,159 | $ 835 | $ 5,720 | $ 27,000 | $ 9,315 | $ 32,913 | $ 9,315 | $ 32,913 | ||||
| (Loss) income from discontinued operations, before tax | (803) | (2,048) | (291) | (803) | (1,854) | (2,400) | (194) | 2,109 | ||||||||||||||||||
| Income tax provision (benefit) | 71 | 412 | 84 | 100 | (13) | 312 | ||||||||||||||||||||
| Income in investment in affiliates | (174) | 92 | (174) | 92 | ||||||||||||||||||||||
| (Loss) income from discontinued operations, after tax | $ (803) | $ (2,293) | $ (611) | $ (803) | $ (1,938) | $ (2,500) | $ 15,500 | $ (355) | $ 1,889 | |||||||||||||||||