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Goodwill and Intangible Assets (Tables)
 6 Months Ended
Aug. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
The changes in the carrying amount of goodwill are summarized as follows (in thousands):
Balance as of February 28, 2017
$
69,795

Effect of foreign exchange rates
858

Balance as of August 31, 2017
$
70,653
Schedule of Intangible Assets Subject to Amortization
Intangible assets subject to amortization are summarized as follows (in thousands):
 
As of August 31, 2017
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Value
Acquired developed technology
$
50,296

 
$
(32,626
)
 
$
17,670

Customer relationships
20,033

 
(10,594
)
 
9,439

Patents
2,999

 
(1,991
)
 
1,008

Trade name
812

 
(432
)
 
380

 
$
74,140

 
$
(45,643
)
 
$
28,497

 
As of February 28, 2017
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Value
Acquired developed technology
$
50,013

 
$
(30,105
)
 
$
19,908

Customer relationships
19,736

 
(9,348
)
 
10,388

Patents
2,999

 
(1,781
)
 
1,218

Trade name
812

 
(375
)
 
437

 
$
73,560

 
$
(41,609
)
 
$
31,951