Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregation of Revenue

The following table presents revenues disaggregated by our business models:

	Three Months Ended
	2021						2020
(In thousands)	Domestic Segment		International Segment		Total		Domestic Segment		International Segment		Total
Licensed software	$	148,833	$	12,828	$	161,661	$	146,497	$	11,535	$	158,032
Technology resale	37,891		7,781		45,672		44,449		7,038		51,487
Subscriptions	95,383		4,429		99,812		86,936		7,449		94,385
Professional services	434,162		60,260		494,422		452,784		58,562		511,346
Managed services	282,076		35,300		317,376		279,736		29,618		309,354
Support and maintenance	217,499		45,825		263,324		223,416		50,265		273,681
Reimbursed travel	6,148		(637)		5,511		12,597		859		13,456
Total revenues	$	1,221,992	$	165,786	$	1,387,778	$	1,246,415	$	165,326	$	1,411,741

The following table presents our revenues disaggregated by timing of revenue recognition:

	Three Months Ended
	2021						2020
(In thousands)	Domestic Segment		International Segment		Total		Domestic Segment		International Segment		Total
Revenue recognized over time	$	1,152,849	$	153,868	$	1,306,717	$	1,165,515	$	153,444	$	1,318,959
Revenue recognized at a point in time	69,143		11,918		81,061		80,900		11,882		92,782
Total revenues	$	1,221,992	$	165,786	$	1,387,778	$	1,246,415	$	165,326	$	1,411,741