Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues:
Total revenues	$ 1,435.0	$ 1,362.7
Cost of revenues:
Total cost of revenues	727.8	725.7
Gross profit	707.2	637.0
Operating expenses:
Selling and marketing	140.9	139.8
Research and development	120.9	118.2
General and administrative	112.5	98.9
Total operating expenses	374.3	356.9
Operating income	332.9	280.1
Interest expense, net	(116.0)	(111.9)
Other income, net	6.6	5.4
Equity in earnings of unconsolidated affiliates, net	2.3	5.7
Loss on extinguishment of debt	(1.1)	(0.6)
Income before income taxes	224.7	178.7
Provision for income taxes	66.7	52.5
Net income	158.0	126.2
Net income attributable to noncontrolling interest	(0.4)	(0.2)
Net income attributable to SS&C common stockholders	$ 157.6	$ 126.0
Basic earnings per share attributable to SS&C common stockholders	$ 0.64	$ 0.5
Diluted earnings per share attributable to SS&C common stockholders	$ 0.62	$ 0.49
Basic weighted-average number of common shares outstanding	247.0	250.4
Diluted weighted-average number of common and common equivalent shares outstanding	253.3	257.0
Net income	$ 158.0	$ 126.2
Other comprehensive (loss) income, net of tax:
Change in unrealized gain on interest rate swaps		0.1
Foreign currency exchange translation adjustment	(47.6)	42.0
Change in defined benefit pension obligation	0.0	(0.1)
Total other comprehensive (loss) income, net of tax	(47.6)	42.1
Comprehensive income	110.4	168.3
Comprehensive income attributable to noncontrolling interest	(0.4)	(0.2)
Comprehensive income attributable to SS&C common stockholders	110.0	168.1
Software-enabled Services [Member]
Revenues:
Total revenues	1,187.7	1,114.2
Cost of revenues:
Total cost of revenues	633.8	631.0
License, Maintenance and Related
Revenues:
Total revenues	247.3	248.5
Cost of revenues:
Total cost of revenues	$ 94.0	$ 94.7