STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jul. 31, 2019

Share-based Payment Arrangement [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 and six months ended July 31, 2019 and 2018: 

	Three Months Ended July 31,				Six Months Ended July 31,
(in thousands)	2019		2018		2019		2018
Cost of revenue - product	$	488	$	388	$	822	$	505
Cost of revenue - service and support	1,546		1,557		2,616		2,286
Research and development, net	3,347		3,039		5,937		4,548
Selling, general and administrative	15,170		12,471		28,279		26,575
Total stock-based compensation expense	$	20,551	$	17,455	$	37,654	$	33,914

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 and six months ended July 31, 2019 and 2018:

	Three Months Ended July 31,				Six Months Ended July 31,
(in thousands)	2019		2018		2019		2018
Restricted stock units and restricted stock awards	$	17,966	$	15,098	$	32,856	$	29,992
Stock bonus program and bonus share program	2,574		2,330		4,749		3,879
Total equity-settled awards	20,540		17,428		37,605		33,871
Phantom stock units (cash-settled awards)	11		27		49		43
Total stock-based compensation expense	$	20,551	$	17,455	$	37,654	$	33,914

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 six months ended July 31, 2019 and 2018:

	Six Months Ended July 31,
	2019				2018
(in thousands, except per share data)	Shares or Units		Weighted-Average Grant Date Fair Value		Shares or Units		Weighted-Average Grant Date Fair Value
Beginning balance	2,777		$	41.05	2,808		$	41.18
Granted	1,554		$	60.75	1,527		$	42.32
Released	(1,349	)	$	40.36	(1,074	)	$	43.90
Forfeited	(139	)	$	42.56	(184	)	$	41.13
Ending balance	2,843		$	52.22	3,077		$	40.84

Summary of Performance Share Activity

The following table summarizes PSU activity in isolation under the Plans for the six months ended July 31, 2019 and 2018 (these amounts are already included in the Award Activity Table above for 2019 and 2018):

	Six Months Ended July 31,
(in thousands)	2019		2018
Beginning balance	512		506
Granted	286		174
Released	(233	)	(72	)
Forfeited	(30	)	(83	)
Ending balance	535		525

Stock Bonus Program Certain Key Data

The following table summarizes activity under the stock bonus program during the six months ended July 31, 2019 and 2018 in isolation. There was no activity under the stock bonus program during the three months ended April 30, 2019. 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.

	Six Months Ended July 31,
(in thousands)	2019	2018
Shares in lieu of cash bonus - granted and released (not included in Award Activity Table above)	97	—
Shares in respect of discount (included in Award Activity Table above):
Granted	16	—
Released	13	—