Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets (Detail)

v2.4.1.9
Goodwill and Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Mar. 31, 2015
Changes in goodwill  
Balance at the beginning of the period $ 170,626us-gaap_Goodwill
Foreign currency translation (8,412)us-gaap_GoodwillTranslationAdjustments
Balance at the end of the period 162,214us-gaap_Goodwill
Health Services  
Changes in goodwill  
Balance at the beginning of the period 124,920us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= mms_HealthServicesMember
Foreign currency translation (6,210)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= mms_HealthServicesMember
Balance at the end of the period 118,710us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= mms_HealthServicesMember
Human Services  
Changes in goodwill  
Balance at the beginning of the period 45,706us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= mms_HumanServicesMember
Foreign currency translation (2,202)us-gaap_GoodwillTranslationAdjustments
/ us-gaap_StatementBusinessSegmentsAxis
= mms_HumanServicesMember
Balance at the end of the period $ 43,504us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= mms_HumanServicesMember