Maximus, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Acquisitions and Divestitures - Narrative (Details)

Acquisitions and Divestitures - Narrative (Details) $ in Thousands, £ in Millions, $ in Millions							1 Months Ended		3 Months Ended	12 Months Ended			36 Months Ended
	Feb. 14, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Jun. 01, 2022 USD ($)	Jun. 01, 2022 AUD ($)	Jan. 31, 2022 USD ($)	Jan. 31, 2022 GBP (£)	Nov. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 GBP (£)	Oct. 06, 2021 USD ($)
Business Acquisition [Line Items]
Number of operating segments \| segment	3									3
Acquisitions of businesses, net of cash acquired										$ 0	$ 0	$ 14,295
Goodwill		$ 1,779,215							$ 1,779,215	1,782,871	1,779,215	1,779,415	$ 1,782,871
Impairment charges		2,900
Disposal Group Not Discontinued Operation Gain Loss On Disposal Statement Of Income Extensible List Not Disclosed Flag								pre-tax loss
Proceeds from divestitures										3,085	9,732	$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Pre-tax loss on sale of practice							$ 1,000
Impairment charges									2,900
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| UNITED KINGDOM
Business Acquisition [Line Items]
Pre-tax loss on sale of practice								$ 600
Total fair value of consideration								16,000		5,800			5,800
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| SWEDEN
Business Acquisition [Line Items]
Total fair value of consideration								$ 400
Opteamix LLC
Business Acquisition [Line Items]
Cash consideration	$ 18,000
Intangible assets, estimated useful life	8 years
Aidvantage
Business Acquisition [Line Items]
Cash consideration													19,300
Contingent consideration liability		7,500							7,500	$ 7,500	7,500		$ 7,500		$ 18,500
Aidvantage \| Customer Relationships
Business Acquisition [Line Items]
Intangible assets, estimated useful life										27 months
Intangible asset related to the customer contract															16,700
Aidvantage \| Maximum
Business Acquisition [Line Items]
Contingent consideration liability															$ 65,000
Stirling Institute of Australia Pty Ltd
Business Acquisition [Line Items]
Intangible asset related to the customer contract			$ 1,800
Percentage of voting equity interests acquired			100.00%
Acquisitions of businesses, net of cash acquired			$ 4,100	$ 5.7
Goodwill			$ 2,300
BZ Bodies Limited
Business Acquisition [Line Items]
Contingent consideration liability		$ 2,500							$ 2,500		$ 2,500			£ 2.0
Intangible asset related to the customer contract					$ 1,300
Percentage of voting equity interests acquired					100.00%
Acquisitions of businesses, net of cash acquired					$ 2,500	£ 1.9
Goodwill					$ 1,400