Debt Instrument, Consolidated Interest Coverage Ratio

No definition available.

Name:	aciw_DebtInstrumentConsolidatedInterestCoverageRatio
Namespace Prefix:	aciw_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

The ratio of (a) consolidated senior secured indebtedness on such date minus the amount of unrestricted cash and cash equivalents of the parent borrower and its subsidiaries as of such date of determination up to $150,000,000 to (b) consolidated EBITDA for the period of four (4) consecutive fiscal quarters ending on or immediately prior to such date.

+ References

No definition available.

+ Details

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Namespace Prefix:	aciw_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

The ratio of (a) consolidated total indebtedness on such date minus the amount of unrestricted cash and cash equivalents of the parent borrower and its subsidiaries as of such date of determination up to $150,000,000 to (b) consolidated EBITDA for the period of four (4) consecutive fiscal quarters ending on or immediately prior to such date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument Issue Price Percentage Of Principal Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	aciw_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of capital stock pledged as collateral under the Company's Credit Agreement.

+ References

No definition available.

+ Details

Name:	aciw_PercentageOfCapitalStockPledgedAsCollateral
Namespace Prefix:	aciw_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
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- Definition

Fair value of the amount outstanding under the credit facility.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

The effective interest rate at the end of the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount of long-term debt classified as other.

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Period Type:

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- Details

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Debt - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2019	Feb. 26, 2024	Dec. 31, 2023	Aug. 12, 2020	Aug. 21, 2018
Debt Instrument [Line Items]
Long-term debt, amount outstanding	$ 1,026,625,000
Credit Agreement
Debt Instrument [Line Items]
Effective interest rate (percentage)	7.43%
Credit Agreement \| Parent Company and Domestic Subsidiaries
Debt Instrument [Line Items]
Percentage of capital stock pledged as collateral	100.00%
Credit Agreement \| Foreign Subsidiaries
Debt Instrument [Line Items]
Percentage of capital stock pledged as collateral	65.00%
Credit Agreement \| Maximum
Debt Instrument [Line Items]
Total net leverage ratio			4.25
Credit Agreement \| Option (a)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Credit Agreement \| Federal Funds Effective Rate \| Option (a)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Credit Agreement \| Secured Overnight Financing Rate (SOFR) \| Option (a)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Credit Agreement \| Secured Overnight Financing Rate (SOFR) \| Option (b) \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.50%
Credit Agreement \| Secured Overnight Financing Rate (SOFR) \| Option (b) \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
Credit Agreement \| Base Rate \| Option (a) \| Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Credit Agreement \| Base Rate \| Option (a) \| Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.50%
Senior Notes \| 5.750% Senior notes, due August 2026
Debt Instrument [Line Items]
Long-term debt, amount outstanding	$ 400,000,000
Debt instrument, face amount						$ 400,000,000
Stated interest rate (as a percent)			5.75%			5.75%
Issue price percentage of senior notes of the principal amount						100.00%
Other \| Multi-year License Agreement
Debt Instrument [Line Items]
Other long-term debt, amount outstanding	3,600,000			$ 3,600,000
Revolving credit facility \| Credit Agreement
Debt Instrument [Line Items]
Line of credit, carrying amount	136,000,000
Unused borrowings	461,900,000
Revolving credit facility \| Letter of Credit \| Credit Agreement
Debt Instrument [Line Items]
Unused borrowings					$ 2,100,000
Revolving credit facility \| Line of Credit \| Refinance Amendment
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 600,000,000
Term loans \| Credit Agreement
Debt Instrument [Line Items]
Long-term debt, amount outstanding	490,600,000
Term loans \| Credit Agreement \| Maximum
Debt Instrument [Line Items]
Senior secured net leverage ratio			3.75
Interest coverage ratio			3.00
Secured Debt \| Line of Credit \| Refinance Amendment
Debt Instrument [Line Items]
Debt instrument, face amount			$ 500,000,000
Letter of Credit \| Line of Credit \| Refinance Amendment
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			35,000,000
Bridge Loan \| Line of Credit \| Refinance Amendment
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 20,000,000
Overdraft Facility \| Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.25%
Line of credit facility, amount available	75,000,000
Amount outstanding on overdraft facility	$ 0			$ 0