Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 412.5	$ 432.2
Funds receivable and funds held on behalf of clients	2,027.0	2,615.6
Accounts receivable, net of allowance for credit losses of $27.4 and $25.1, respectively	879.9	799.4
Contract asset	43.2	36.1
Prepaid expenses and other current assets	142.8	165.8
Restricted cash and cash equivalents	2.2	2.4
Total current assets	3,507.6	4,051.5
Property, plant and equipment, net (Note 2)	300.1	315.3
Operating lease right-of-use assets	213.5	221.4
Investments (Note 3)	183.7	184.7
Unconsolidated affiliates (Note 4)	346.7	345.2
Contract asset	100.2	99.7
Goodwill (Note 5)	8,933.2	8,969.5
Intangible and other assets, net of accumulated amortization of $4,203.6 and $4,063.4, respectively	3,801.8	3,915.2
Total assets	17,386.8	18,102.5
Current liabilities:
Current portion of long-term debt (Note 6)	50.8	51.5
Client funds obligations	2,027.0	2,615.6
Accounts payable	38.3	80.3
Income taxes payable	65.3	22.3
Accrued employee compensation and benefits	168.9	270.2
Interest payable	2.8	29.4
Other accrued expenses	226.5	232.3
Deferred revenues	493.2	470.3
Total current liabilities	3,072.8	3,771.9
Long-term debt, net of current portion (Note 6)	6,593.5	6,668.5
Operating lease liabilities	191.7	199.1
Other long-term liabilities	256.2	248.7
Deferred income taxes	779.9	816.6
Total liabilities	10,894.1	11,704.8
Commitments and contingencies (Note 13)
Stockholders' equity (Note7):
Preferred stock, $0.01 par value per share, 5.0 million shares authorized; no shares issued	0.0	0.0
Additional paid-in capital	5,468.2	5,371.0
Accumulated other comprehensive loss	(473.9)	(426.3)
Retained earnings	3,224.2	3,126.3
Cost of common stock in treasury, 30.1 and 29.3 million shares, respectively	(1,787.1)	(1,734.2)
Total SS&C stockholders' equity	6,434.2	6,339.6
Noncontrolling interest (Note 8)	58.5	58.1
Total equity	6,492.7	6,397.7
Total liabilities and equity	17,386.8	18,102.5
Class A Non-Voting Common Stock [Member]
Stockholders' equity (Note7):
Common stock	0.0	0.0
Common Stock Class Undefined [Member]
Stockholders' equity (Note7):
Common stock	$ 2.8	$ 2.8