Annual report pursuant to Section 13 and 15(d)

Discontinued Operations - Additional Information (Detail)

v2.4.0.8
Discontinued Operations - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2014
Jan. 31, 2014
Jan. 31, 2013
Jan. 31, 2012
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]
Buildings [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]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                            
Total revenues   $ 46 $ 11,181 $ 44,792 $ 4,900 $ 46 $ 1,866 $ 11,879   $ 27,000      $ 9,315 $ 32,913
Total gain on sale of business, net of tax     (14,073)   1,500                  
Income (loss) from discontinued operations, after tax   (803) (2,293) (611)   (803) (1,938) (2,500)     15,500    (355) 1,889
Goodwill, Impairment Loss $ 0                   $ 17,000      
Remaining estimated useful life of the building asset group                 7 years