Annual report pursuant to Section 13 and 15(d)

Business segments - Schedule of Identifiable Assets (Details)

v3.5.0.2
Business segments - Schedule of Identifiable Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Sep. 30, 2015
Segment Reporting Information [Line Items]    
Identifiable assets $ 1,348,819 $ 1,271,558
Operating segments | Health Services    
Segment Reporting Information [Line Items]    
Identifiable assets 543,361 482,560
Operating segments | U.S. Federal Services    
Segment Reporting Information [Line Items]    
Identifiable assets 440,006 441,521
Operating segments | Human Services    
Segment Reporting Information [Line Items]    
Identifiable assets 153,141 186,406
Other/Corporate    
Segment Reporting Information [Line Items]    
Identifiable assets $ 212,311 $ 161,071