CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Revenues
Revenues		$ 323,080	$ 285,186
Operating expenses
Cost of revenue	[1]	166,286	159,485
Research and development		37,807	34,514
Selling and marketing		34,608	28,138
General and administrative		25,875	27,775
Depreciation and amortization		30,838	31,584
Total operating expenses		295,414	281,496
Operating income		27,666	3,690
Other income (expense)
Interest expense		(10,894)	(11,475)
Interest income		3,159	2,854
Other, net		2,250	(1,382)
Total other income (expense)		(5,485)	(10,003)
Income (loss) before income taxes		22,181	(6,313)
Income tax expense (benefit)		6,691	(4,368)
Net income (loss)		$ 15,490	$ (1,945)
Income (loss) per common share
Basic (in dollars per share)		$ 0.13	$ (0.02)
Diluted (in dollars per share)		$ 0.13	$ (0.02)
Weighted average common shares outstanding
Basic (in shares)		115,287	117,491
Diluted (in shares)		116,098	117,491
Software as a service and platform as a service
Revenues
Revenues		$ 194,562	$ 195,746
License
Revenues
Revenues		60,285	21,202
Maintenance
Revenues
Revenues		51,418	52,363
Services
Revenues
Revenues		$ 16,815	$ 15,875

[1] The cost of revenue excludes charges for depreciation but includes amortization of purchased and developed software for resale.