Maximus, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Revenue Recognition - Effect of Changes in Contract Estimates (Details)

Revenue Recognition - Effect of Changes in Contract Estimates (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Increase in/(reduction of) revenue recognized due to changes in contract estimates	$ 5,431,276	$ 5,306,197	$ 4,904,728
Increase in/(reduction of) diluted earnings per share recognized due to changes in contract estimates (in dollars per share)	$ 5.51	$ 4.99	$ 2.63
Change in contract estimates
Disaggregation of Revenue [Line Items]
Increase in/(reduction of) revenue recognized due to changes in contract estimates	$ 11,424	$ (12,617)	$ (13,346)
Increase in/(reduction of) diluted earnings per share recognized due to changes in contract estimates (in dollars per share)	$ 0.15	$ (0.15)	$ (0.16)

- 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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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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