REVENUE (Tables)

12 Months Ended

Dec. 31, 2018

Revenue Recognition and Deferred Revenue [Abstract]



(in thousands)	2018		2017		2016
Perpetual license	$	109,863	$	132,883	$	145,053
Term license	178,256		206,411		152,231
Revenue recognized at a point in time	288,119		339,294		297,284
Maintenance	263,875		242,320		218,635
Cloud	82,627		51,097		40,647
Consulting	256,960		255,756		205,663
Revenue recognized over time	603,462		549,173		464,945
Total revenue	$	891,581	$	888,467	$	762,229



(in thousands)	2018		2017		2016
Term license	$	178,256	$	206,411	$	152,231
Cloud	82,627		51,097		40,647
Maintenance	263,875		242,320		218,635
Subscription ⁽¹⁾	524,758		499,828		411,513
Perpetual license	109,863		132,883		145,053
Consulting	256,960		255,756		205,663
Total revenue	$	891,581	$	888,467	$	762,229

⁽¹⁾Subscription revenue reflects client arrangements (term license, cloud, and maintenance) which are subject to renewal.

Revenue by Geographic Area



(Dollars in thousands)	2018				2017				2016
U.S.	$	469,987	52	%	$	505,415	56	%	$	447,673	59	%
Other Americas	53,239		6	%	41,467		5	%	41,607		5	%
U.K.	95,628		11	%	97,000		11	%	98,624		13	%
Other EMEA ⁽¹⁾	147,248		17	%	138,752		16	%	97,113		13	%
Asia-Pacific	125,479		14	%	105,833		12	%	77,212		10	%
Total revenue	$	891,581	100	%	$	888,467	100	%	$	762,229	100	%

⁽¹⁾ Includes Europe (excluding the U.K.), the Middle East, and Africa.

Remaining Performance Obligations on Existing Contracts

The Company’s typical performance obligations are:



Performance Obligation	How Standalone Selling Price is Typically Determined	When Performance Obligation is Typically Satisfied	When Payment is Typically Due
Perpetual license	Residual approach	Upon transfer of control to the client, defined when the client can use and benefit from the license (point in time)	Effective date of the license
Term license	Residual approach	Upon transfer of control to the client, defined when the client can use and benefit from the license (point in time)	Annually, or more frequently, over the term of the license
Maintenance	Consistent pricing relationship as a percentage of the related license and observable in stand-alone renewal transactions ⁽¹⁾	Ratably over the term of the maintenance (over time)	Annually, or more frequently, over the term of maintenance
Consulting - time and materials	Observable hourly rate for time and materials-based services in similar geographies for similar contract sizes	Based on hours incurred to date	Monthly
Consulting - fixed price	Observable hourly rate for time and materials-based services in similar geographies for similar contract sizes multiplied by estimated hours for the project	Based on hours incurred as a percentage of total estimated hours	As contract milestones are achieved
Cloud	Residual approach	Ratably over the term of the service (over time)	Annually, or more frequently, over the term of the service

⁽¹⁾ Technical support and software updates are considered distinct services but accounted for as a single performance obligation, as they have the same pattern of transfer to the client.

Revenue for the remaining performance obligations on existing contracts is expected to be recognized as follows:



	December 31, 2018
(Dollars in thousands)	Perpetual license		Term license		Maintenance		Cloud		Consulting		Total
1 year or less	$	14,665	$	72,378	$	192,274	$	103,354	$	17,235	$	399,906	63	%
1-2 years	2,343		10,355		10,436		80,214		2,810		106,158		17	%
2-3 years	1,661		1,414		3,644		61,906		940		69,565		11	%
Greater than 3 years	—		233		1,560		53,343		208		55,344		9	%
	$	18,669	$	84,380	$	207,914	$	298,817	$	21,193	$	630,973	100	%

Schedule of Clients Accounting for a Percentage of Total Revenue

Clients accounting for 10% or more of the Company’s total revenue were:



(Dollars in thousands)	2018		2017			2016
Total revenue	$	891,581	$	888,467		$	762,229
Client A	*		10		%	*

*Client accounted for less than 10% of total revenue.