Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 438.3	$ 564.0
Funds receivable and funds held on behalf of clients	1,620.3	2,755.7
Accounts receivable, net of allowance for credit losses of $21.6 and $17.9, respectively	826.3	713.4
Contract asset	31.6	27.4
Prepaid expenses and other current assets	166.1	187.5
Restricted cash and cash equivalents	3.3	4.2
Total current assets	3,085.9	4,252.2
Property, plant and equipment, net (Note 2)	356.5	382.0
Operating lease right-of-use assets	278.2	291.2
Investments (Note 3)	160.1	172.8
Unconsolidated affiliates (Note 4)	308.2	306.1
Contract asset	86.5	77.9
Goodwill (Note 6)	8,866.8	8,045.5
Intangible and other assets, net of accumulated amortization of $3,028.8 and $2,890.5, respectively	4,358.1	3,805.3
Total assets	17,500.3	17,333.0
Current liabilities:
Current portion of long-term debt (Note 7)	57.8	47.4
Client funds obligations	1,620.3	2,755.7
Accounts payable	54.5	28.7
Income taxes payable	0.0	25.5
Accrued employee compensation and benefits	196.7	322.2
Interest payable	27.5	27.5
Other accrued expenses	347.4	310.1
Deferred revenues	471.6	334.0
Total current liabilities	2,775.8	3,851.1
Long-term debt, net of current portion (Note 7)	7,234.5	5,901.5
Operating lease liabilities	253.8	268.2
Other long-term liabilities	250.5	254.0
Deferred income taxes	871.5	835.0
Total liabilities	11,386.1	11,109.8
Commitments and contingencies (Note 13)
Redeemable noncontrolling interest	2.1	0.0
Stockholders’ equity (Note 8):
Preferred stock, $0.01 par value per share, 5.0 million shares authorized; no shares issued	0.0	0.0
Common stock	2.7	2.7
Additional paid-in capital	5,039.3	4,895.7
Accumulated other comprehensive loss	(505.0)	(242.0)
Retained earnings	2,473.3	2,293.0
Stockholders' equity before treasury stock	7,010.3	6,949.4
Less: cost of common stock in treasury, 15.4 and 13.1 million shares, respectively	(954.9)	(784.0)
Total SS&C stockholders' equity	6,055.4	6,165.4
Noncontrolling interest (Note 9)	56.7	57.8
Total stockholders' equity	6,112.1	6,223.2
Total liabilities, redeemable noncontrolling interest and stockholders' equity	17,500.3	17,333.0
Class A Non-Voting Common Stock [Member]
Stockholders’ equity (Note 8):
Common stock