Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 433.3	$ 440.1
Funds receivable and funds held on behalf of clients	429.2	966.3
Accounts receivable, net of allowance for credit losses of $24.7 and $21.7, respectively	811.0	778.6
Contract asset	45.0	42.3
Prepaid expenses and other current assets	156.2	193.8
Restricted cash and cash equivalents	2.5	3.3
Total current assets	1,877.2	2,424.4
Property, plant and equipment, net (Note 2)	326.6	343.9
Operating lease right-of-use assets	250.4	260.6
Investments (Note 3)	192.9	193.9
Unconsolidated affiliates (Note 4)	257.7	266.9
Contract asset	112.8	115.9
Goodwill (Note 6)	8,889.6	8,863.0
Intangible and other assets, net of accumulated amortization of $3,598.9 and $3,445.4, respectively	4,101.2	4,184.7
Total assets	16,008.4	16,653.3
Current liabilities:
Current portion of long-term debt (Note 7)	129.4	55.7
Client funds obligations	429.2	966.3
Accounts payable	41.4	49.5
Income taxes payable	83.7	34.3
Accrued employee compensation and benefits	140.3	235.8
Interest payable	0.2	28.4
Other accrued expenses	331.4	356.1
Deferred revenues	493.6	464.7
Total current liabilities	1,649.2	2,190.8
Long-term debt, net of current portion (Note 7)	6,909.6	7,023.9
Operating lease liabilities	228.2	237.0
Other long-term liabilities	232.1	225.8
Deferred income taxes	846.9	872.9
Total liabilities	9,866.0	10,550.4
Commitments and contingencies (Note 14)
Redeemable noncontrolling interest (Note 3)	1.6	2.1
Stockholders’ equity (Note 8):
Preferred stock, $0.01 par value per share, 5.0 million shares authorized; no shares issued	0.0	0.0
Additional paid-in capital	5,168.7	5,111.6
Accumulated other comprehensive loss	(508.0)	(550.1)
Retained earnings	2,815.4	2,740.1
Cost of common stock in treasury, 23.2 and 20.9 million shares, respectively	(1,394.8)	(1,260.1)
Total SS&C stockholders' equity	6,084.0	6,044.2
Noncontrolling interest (Note 9)	56.8	56.6
Total equity	6,140.8	6,100.8
Total liabilities, redeemable noncontrolling interest and equity	16,008.4	16,653.3
Class A Non-Voting Common Stock [Member]
Stockholders’ equity (Note 8):
Common stock	0.0	0.0
Common Stock Class Undefined [Member]
Stockholders’ equity (Note 8):
Common stock	$ 2.7	$ 2.7