INTANGIBLE ASSETS AND GOODWILL (Tables)

12 Months Ended

Jan. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of acquisition-related intangible assets

Acquisition-related intangible assets consisted of the following as of January 31, 2018 and 2017:

	January 31, 2018
(in thousands)	Cost		Accumulated Amortization			Net
Intangible assets with finite lives:
Customer relationships	$	438,664	$	(281,592	)	$	157,072
Acquired technology	273,156		(212,571		)	60,585
Trade names	26,820		(18,570		)	8,250
Non-competition agreements	3,047		(2,861		)	186
Distribution network	4,440		(4,440		)	—
Total intangible assets	$	746,127	$	(520,034	)	$	226,093

	January 31, 2017
(in thousands)	Cost		Accumulated Amortization			Net
Intangible assets, all with finite lives:
Customer relationships	$	403,657	$	(244,792	)	$	158,865
Acquired technology	233,982		(168,653		)	65,329
Trade names	23,493		(14,187		)	9,306
Non-competition agreements	3,047		(2,499		)	548
Distribution network	4,440		(4,329		)	111
Total intangible assets with finite lives	668,619		(434,460		)	234,159
In-process research and development, with indefinite lives	1,100		—			1,100
Total intangible assets	$	669,719	$	(434,460	)	$	235,259

Schedule of net acquisition-related intangible assets by reportable segment

The following table presents net acquisition-related intangible assets by reportable segment as of January 31, 2018 and 2017: 

	January 31,
(in thousands)	2018		2017
Customer Engagement	$	213,963	$	207,436
Cyber Intelligence	12,130		27,823
Total	$	226,093	$	235,259

Schedule of estimated future amortization expense on finite-lived acquisition-related intangible assets

Estimated future amortization expense on finite-lived acquisition-related intangible assets is as follows:

(in thousands)
Years Ending January 31,	Amount
2019	$	53,733
2020	42,265
2021	34,434
2022	30,578
2023	24,795
Thereafter	40,288
Total	$	226,093

Schedule of goodwill activity

Goodwill activity for the years ended January 31, 2018, and 2017, in total and by reportable segment, was as follows: 

				Reportable Segment
(in thousands)	Total			Customer Engagement			Cyber Intelligence
Year Ended January 31, 2017:
Goodwill, gross, at January 31, 2016	$	1,274,041		$	1,131,249		$	142,792
Accumulated impairment losses through January 31, 2016	(66,865		)	(56,043		)	(10,822		)
Goodwill, net, at January 31, 2016	1,207,176			1,075,206			131,970
Business combinations	91,209			91,209			—
Foreign currency translation and other	(33,567		)	(34,436		)	869
Goodwill, net, at January 31, 2017	$	1,264,818		$	1,131,979		$	132,839
Year Ended January 31, 2018:
Goodwill, gross, at January 31, 2017	$	1,331,683		$	1,188,022		$	143,661
Accumulated impairment losses through January 31, 2017	(66,865		)	(56,043		)	(10,822		)
Goodwill, net, at January 31, 2017	1,264,818			1,131,979			132,839
Business combinations, including prior year adjustments	81,180			77,345			3,835
Foreign currency translation and other	42,301			41,769			532
Goodwill, net, at January 31, 2018	$	1,388,299		$	1,251,093		$	137,206
Balance at January 31, 2018:
Goodwill, gross, at January 31, 2018	$	1,455,164		$	1,307,136		$	148,028
Accumulated impairment losses through January 31, 2018	(66,865		)	(56,043		)	(10,822		)
Goodwill, net, at January 31, 2018	$	1,388,299		$	1,251,093		$	137,206