REVENUE (Tables)

6 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Geographic revenue

	Three Months Ended   June 30,								Six Months Ended   June 30,
(Dollars in thousands)	2019				2018				2019				2018
U.S.	$	119,682	59	%	$	110,349	55	%	$	223,673	54	%	$	224,334	52	%
Other Americas	8,873		4	%	9,627		5	%	37,702		9	%	27,342		6	%
United Kingdom (“U.K.”)	16,686		8	%	23,079		12	%	41,235		10	%	49,173		11	%
Europe (excluding U.K.), Middle East, and Africa	33,395		16	%	27,070		14	%	67,581		16	%	58,896		14	%
Asia-Pacific	26,956		13	%	26,654		14	%	47,947		11	%	72,216		17	%
	$	205,592	100	%	$	196,779	100	%	$	418,138	100	%	$	431,961	100	%

Revenue streams

	Three Months Ended   June 30,				Six Months Ended   June 30,
(in thousands)	2019		2018		2019		2018
Perpetual license	$	19,320	$	13,475	$	34,270	$	36,553
Term license	24,954		31,309		73,268		96,004
Revenue recognized at a point in time	44,274		44,784		107,538		132,557
Maintenance	69,329		65,906		137,035		130,431
Cloud	31,699		20,201		59,457		35,783
Consulting	60,290		65,888		114,108		133,190
Revenue recognized over time	161,318		151,995		310,600		299,404
	$	205,592	$	196,779	$	418,138	$	431,961

(in thousands)	Three Months Ended   June 30,				Six Months Ended   June 30,
	2019		2018		2019		2018
Term license	$	24,954	$	31,309	$	73,268	$	96,004
Cloud	31,699		20,201		59,457		35,783
Maintenance	69,329		65,906		137,035		130,431
Subscription (1)	125,982		117,416		269,760		262,218
Perpetual license	19,320		13,475		34,270		36,553
Consulting	60,290		65,888		114,108		133,190
	$	205,592	$	196,779	$	418,138	$	431,961

⁽¹⁾  Reflects client arrangements (term license, cloud, and maintenance) that are subject to renewal.

Revenue for Remaining Performance Obligations Expected to be Recognized

Expected future revenue on existing contracts:

	June 30, 2019
(Dollars in thousands)	Perpetual license		Term License		Maintenance		Cloud		Consulting		Total
1 year or less	$	8,429	$	38,080	$	173,421	$	124,134	$	16,259	$	360,323	57	%
1-2 years	915		4,678		12,530		98,842		942		117,907		19	%
2-3 years	1,306		641		5,801		75,828		227		83,803		13	%
Greater than 3 years	—		185		2,812		63,259		—		66,256		11	%
	$	10,650	$	43,584	$	194,564	$	362,063	$	17,428	$	628,289	100	%

	June 30, 2018
(Dollars in thousands)	Perpetual license		Term License		Maintenance		Cloud		Consulting		Total
1 year or less	$	28,626	$	20,457	$	111,086	$	41,036	$	12,039	$	213,244	45	%
1-2 years	15,862		9,878		43,837		66,529		4,103		140,209		29	%
2-3 years	2,423		5,665		5,265		50,250		—		63,603		13	%
Greater than 3 years	362		944		2,103		55,995		200		59,604		13	%
	$	47,273	$	36,944	$	162,291	$	213,810	$	16,342	$	476,660	100	%