Maximus, Inc. Quarterly report [Sections 13 or 15(d)]

Debt And Derivatives - Schedule of Interest Rate Derivative Instruments (Details) - Interest Rate Swap - Term Loan $ in Thousands	Mar. 31, 2026 USD ($)
Term Loan A
Debt Instrument [Line Items]
Notional Amount	$ 500,000
Fixed Interest Rate	2.31%
Term Loan B
Debt Instrument [Line Items]
Notional Amount	$ 75,000
Fixed Interest Rate	3.72%
Term Loan B
Debt Instrument [Line Items]
Notional Amount	$ 75,000
Fixed Interest Rate	3.62%
Term Loan A
Debt Instrument [Line Items]
Notional Amount	$ 150,000
Fixed Interest Rate	3.14%
Term Loan A
Debt Instrument [Line Items]
Notional Amount	$ 150,000
Fixed Interest Rate	3.28%