Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v3.10.0.1
Document and Entity Information - shares
3 Months Ended
Dec. 31, 2018
Feb. 04, 2019
Document and Entity Information    
Entity Registrant Name MAXIMUS INC  
Entity Central Index Key 0001032220  
Current Fiscal Year End Date --09-30  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Dec. 31, 2018  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Emerging Growth Company false  
Entity Small Reporting Company false  
Entity Common Stock, Shares Outstanding   63,797,978