Business combinations and disposals - Pro forma information (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | |
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Sep. 30, 2019 |
Sep. 30, 2018 |
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| Business Combinations [Abstract] | ||
| Revenue | $ 2,985,244 | $ 3,016,823 |
| Net income | $ 243,968 | $ 218,647 |
| Basic earnings per share attributable to MAXIMUS (in dollars per share) | $ 3.79 | $ 3.34 |
| Diluted earnings per share attributable to MAXIMUS (in shares) | $ 3.77 | $ 3.32 |
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- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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