Goodwill and Intangible Assets (Tables)
 3 Months Ended
May 31, 2016
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 29, 2016
$
69,595

Goodwill acquired
409

Effect of foreign exchange rates
156

Balance as of May 31, 2016
$
70,160
Schedule of Intangible Assets Subject to Amortization
Intangible assets subject to amortization are summarized as follows (in thousands):
 
As of May 31, 2016
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Value
Acquired developed technology
$
50,133

 
$
(26,849
)
 
$
23,284

Customer relationships
19,862

 
(7,929
)
 
11,933

Patents
2,999

 
(1,417
)
 
1,582

Trade name
812

 
(289
)
 
523

 
$
73,806

 
$
(36,484
)
 
$
37,322

 
As of February 29, 2016
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
Carrying
Value
Acquired developed technology
$
50,082

 
$
(25,643
)
 
$
24,439

Customer relationships
19,809

 
(7,313
)
 
12,496

Patents
2,999

 
(1,295
)
 
1,704

Trade name
812

 
(259
)
 
553

 
$
73,702

 
$
(34,510
)
 
$
39,192