STOCK-BASED COMPENSATION (Tables)
 3 Months Ended
Apr. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Stock-Based Compensation Expense by Line Item
We recognized stock-based compensation expense in the following line items on the condensed consolidated statements of operations for the three months ended April 30, 2018 and 2017: 
 
 
Three Months Ended
April 30,
(in thousands)
 
2018
 
2017
Cost of revenue - product
 
$
117

 
$
341

Cost of revenue - service and support
 
729

 
1,252

Research and development, net
 
1,509

 
3,031

Selling, general and administrative
 
14,104

 
13,059

Total stock-based compensation expense
 
$
16,459

 
$
17,683
Schedule of Stock-Based Compensation Expense by Type of Award
The following table summarizes stock-based compensation expense by type of award for the three months ended April 30, 2018, and 2017:
 
 
Three Months Ended
April 30,
(in thousands)
 
2018
 
2017
Restricted stock units and restricted stock awards
 
$
14,895

 
$
13,443

Stock bonus program and bonus share program
 
1,548

 
4,177

Total equity-settled awards
 
16,443

 
17,620

Phantom stock units (cash-settled awards)
 
16

 
63

Total stock-based compensation expense
 
$
16,459

 
$
17,683
Summary of RSU Activity
The following table (“Award Activity Table”) summarizes activity for RSUs, PSUs, and other stock awards that reduce available Plan capacity under the Plans for the three months ended April 30, 2018:
(in thousands, except per share data)
 
Shares or Units
 
Weighted-Average Grant Date Fair Value
Outstanding, January 31, 2018
 
2,808

 
$
41.18

Granted
 
1,324

 
$
42.39

Released
 
(180
)
 
$
38.65

Forfeited
 
(100
)
 
$
42.11

Outstanding, April 30, 2018
 
3,852

 
$
41.69
Summary of Performance Share Activity
The following table summarizes PSU activity in isolation under the Plans for the three months ended April 30, 2018 and 2017 (these amounts are already included in the Award Activity Table above for 2018):
 
 
Three Months Ended
April 30,
(in thousands)
 
2018
 
2017
Beginning balance
 
506

 
438

Granted
 
174

 
204

Released
 
(72
)
 
(50
)
Forfeited
 
(83
)
 
(79
)
Ending balance
 
525

 
513