Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table summarizes revenue:

	Year Ended December 31,
(in thousands)	2021			2020			2019
Revenue:
Lease licenses	$	617,643		$	500,105		$	406,043
Perpetual licenses	328,154			280,745			293,587
Software licenses	945,797			780,850			699,630
Maintenance	896,037			840,597			760,574
Service	64,881			59,850			55,688
Maintenance and service	960,918			900,447			816,262
Total revenue	$	1,906,715		$	1,681,297		$	1,515,892
Direct revenue, as a percentage of total revenue	76.3		%	77.8		%	77.1		%
Indirect revenue, as a percentage of total revenue	23.7		%	22.2		%	22.9		%

Changes in Deferred Revenue

The changes in deferred revenue, inclusive of both current and long-term deferred revenue, during the years ended December 31, 2021 and 2020 were as follows:

(in thousands)	2021		2020
Beginning balance – January 1	$	388,810	$	365,274
Acquired deferred revenue	3,831		6,872
Deferral of revenue	1,937,974		1,687,907
Recognition of deferred revenue	(1,906,715)		(1,681,297)
Currency translation	(11,119)		10,054
Ending balance – December 31	$	412,781	$	388,810

Remaining Performance Obligations, Expected Timing of Satisfaction

Total revenue allocated to remaining performance obligations as of December 31, 2021 will be recognized as revenue as follows:

(in thousands)
Next 12 months	$	764,862
Months 13-24	253,226
Months 25-36	158,281
Thereafter	81,491
Total revenue allocated to remaining performance obligations	$	1,257,860