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STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS (Tables)
 12 Months Ended
Jan. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of recognized stock-based compensation expense on the consolidated statements of operations
We recognized stock-based compensation expense in the following line items on the consolidated statements of operations for the years ended January 31, 2018, 2017, and 2016:
 
 
 
Year Ended January 31,
(in thousands)
 
2018
 
2017
 
2016
Component of (loss) income before provision (benefit) for income taxes:
 
 
 
 
 
 
Cost of revenue - product
 
$
1,561

 
$
1,290

 
$
1,466

Cost of revenue - service and support
 
6,904

 
7,297

 
5,719

Research and development, net
 
13,144

 
11,637

 
9,195

Selling, general and administrative
 
47,757

 
45,384

 
48,169

Total stock-based compensation expense
 
69,366

 
65,608

 
64,549

Income tax benefits related to stock-based compensation (before consideration of valuation allowances)
 
16,504

 
15,752

 
14,385

Total stock-based compensation, net of taxes
 
$
52,862

 
$
49,856

 
$
50,164
Summary of stock-based compensation expense by type of award
Total stock-based compensation expense by type of award was as follows for the years ended January 31, 2018, 2017, and 2016: 
 
 
Year Ended January 31,
(in thousands)
 
2018
 
2017
 
2016
Restricted stock units and restricted stock awards
 
$
57,188

 
$
55,123

 
$
58,028

Stock bonus program and bonus share program
 
12,108

 
10,298

 
6,359

Total equity-settled awards
 
69,296

 
65,421

 
64,387

Phantom stock units (cash-settled awards)
 
70

 
187

 
162

Total stock-based compensation expense
 
$
69,366

 
$
65,608

 
$
64,549
Summary of RSU and RSA activity under the Plans
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 years ended January 31, 2018, 2017, and 2016:
 
 
Year Ended January 31,
 
 
2018
 
2017
 
2016
(in thousands, except grant date fair values)
 
Shares or Units
 
Weighted-Average Grant-Date Fair Value
 
Shares or Units
 
Weighted-Average Grant-Date Fair Value
 
Shares or Units
 
Weighted-Average Grant-Date Fair Value
Beginning balance
 
2,742

 
$
45.20

 
2,649

 
$
54.57

 
2,545

 
$
40.96

Granted
 
1,804

 
$
40.19

 
1,870

 
$
35.33

 
1,729

 
$
62.62

Released
 
(1,403
)
 
$
45.96

 
(1,433
)
 
$
47.98

 
(1,312
)
 
$
39.75

Forfeited
 
(335
)
 
$
48.92

 
(344
)
 
$
52.20

 
(313
)
 
$
50.56

Ending balance
 
2,808

 
$
41.18

 
2,742

 
$
45.20

 
2,649

 
$
54.57
Summary of performance RSU activity under the Plans
The following table summarizes PSU activity in isolation under the Plans for the years ended January 31, 2018, 2017, and 2016 (these amounts are already included in the Award Activity Table above):
 
 
Year Ended January 31,
(in thousands)
 
2018
 
2017
 
2016
Beginning balance
 
438

 
332

 
497

Granted
 
204

 
312

 
195

Released
 
(50
)
 
(159
)
 
(239
)
Forfeited
 
(86
)
 
(47
)
 
(121
)
Ending balance
 
506

 
438

 
332
Summary of Key Data for Stock Bonus Program
The following table summarizes activity under the stock bonus program for the years ended January 31, 2018, 2017, and 2016 in isolation. As noted above, shares issued in respect of the discount feature under the program reduce available plan capacity and are included in the Award Activity Table above. Other shares issued under the program do not reduce available plan capacity and are therefore excluded from the Award Activity Table above.
 
 
Year Ended January 31,
(in thousands)
 
2018
 
2017
 
2016
Shares in lieu of earned cash bonus - granted and released
 
21

 
25

 
43

Shares in respect of discount:
 
 
 
 
 
 
   Granted
 
—

 
—

 
7

   Released
 
—

 
—

 
5