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Property and Equipment
9 Months Ended
Oct. 31, 2013
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment
 
Property and equipment are stated at cost, net of accumulated depreciation and amortization. These assets are depreciated and amortized using the straight-line method over their estimated useful lives. Property and equipment consisted of the following (in thousands):
 
 
 
As of
 
 
October 31, 2013
 
January 31, 2013
Computer equipment and software
 
$
18,860

 
$
16,077

Furniture and fixtures
 
4,144

 
2,714

Leasehold improvements
 
7,642

 
4,129

 
 
30,646

 
22,920

Less: accumulated depreciation and amortization
 
(16,209
)
 
(9,715
)
Property and equipment, net
 
$
14,437

 
$
13,205


 
Depreciation and amortization expense was $3.6 million and $1.2 million for the three months ended October 31, 2013 and 2012, respectively. Depreciation and amortization expense was $6.5 million and $3.4 million for the nine months ended October 31, 2013 and 2012, respectively. Included in depreciation and amortization expense during the three and nine months ended October 31, 2013 was a $2.1 million impairment charge of a long-lived asset for previously capitalized Storm software development costs as a result of our decision to make Storm available to customers at no cost.