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Business Overview (Details)	12 Months Ended
	Sep. 30, 2016 employee location	Sep. 30, 2015
Concentration Risk [Line Items]
Number of employees (employee) | employee	1,400
Minimum number of locations in which entity operates (location) | location	30
Human Services and Solutions | Revenue concentration | Customer concentration
Concentration Risk [Line Items]
Concentration risk percentage (percent)	13.00%
US Government | Revenue concentration | Customer concentration
Concentration Risk [Line Items]
Concentration risk percentage (percent)	100.00%
DVA | Minimum
Concentration Risk [Line Items]
Term of government contract	1 year
DVA | Maximum
Concentration Risk [Line Items]
Term of government contract	4 years
DVA | Revenue concentration | Customer concentration
Concentration Risk [Line Items]
Concentration risk percentage (percent)	72.00%	95.00%

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
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