| Segment Information | 
Segment Information 
The table below provides certain financial information for each of our business segments.  
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Three Months Ended March 31,  | 
   | 
Six Months Ended March 31,  | 
 
(dollars in thousands)  | 
   | 
2018  | 
   | 
% (1)  | 
   | 
2017  | 
   | 
% (1)  | 
   | 
2018  | 
   | 
% (1)  | 
   | 
2017  | 
   | 
% (1)  | 
 
Revenue:  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Health Services  | 
   | 
$  | 
365,633  | 
 
  | 
   | 
100  | 
%  | 
   | 
$  | 
348,994  | 
 
  | 
   | 
100  | 
%  | 
   | 
$  | 
717,723  | 
 
  | 
   | 
100  | 
%  | 
   | 
$  | 
689,723  | 
 
  | 
   | 
100  | 
%  | 
 
U.S. Federal Services  | 
   | 
116,327  | 
 
  | 
   | 
100  | 
%  | 
   | 
145,370  | 
 
  | 
   | 
100  | 
%  | 
   | 
249,310  | 
 
  | 
   | 
100  | 
%  | 
   | 
286,668  | 
 
  | 
   | 
100  | 
%  | 
 
Human Services  | 
   | 
130,827  | 
 
  | 
   | 
100  | 
%  | 
   | 
127,683  | 
 
  | 
   | 
100  | 
%  | 
   | 
268,902  | 
 
  | 
   | 
100  | 
%  | 
   | 
253,220  | 
 
  | 
   | 
100  | 
%  | 
 
Total  | 
   | 
$  | 
612,787  | 
 
  | 
   | 
100  | 
%  | 
   | 
$  | 
622,047  | 
 
  | 
   | 
100  | 
%  | 
   | 
$  | 
1,235,935  | 
 
  | 
   | 
100  | 
%  | 
   | 
$  | 
1,229,611  | 
 
  | 
   | 
100  | 
%  | 
 
Gross profit:  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Health Services  | 
   | 
$  | 
98,207  | 
 
  | 
   | 
26.9  | 
%  | 
   | 
$  | 
86,454  | 
 
  | 
   | 
24.8  | 
%  | 
   | 
$  | 
189,263  | 
 
  | 
   | 
26.4  | 
%  | 
   | 
$  | 
164,688  | 
 
  | 
   | 
23.9  | 
%  | 
 
U.S. Federal Services  | 
   | 
27,374  | 
 
  | 
   | 
23.5  | 
%  | 
   | 
36,571  | 
 
  | 
   | 
25.2  | 
%  | 
   | 
60,732  | 
 
  | 
   | 
24.4  | 
%  | 
   | 
74,147  | 
 
  | 
   | 
25.9  | 
%  | 
 
Human Services  | 
   | 
23,222  | 
 
  | 
   | 
17.8  | 
%  | 
   | 
29,292  | 
 
  | 
   | 
22.9  | 
%  | 
   | 
50,768  | 
 
  | 
   | 
18.9  | 
%  | 
   | 
58,300  | 
 
  | 
   | 
23.0  | 
%  | 
 
Total  | 
   | 
$  | 
148,803  | 
 
  | 
   | 
24.3  | 
%  | 
   | 
$  | 
152,317  | 
 
  | 
   | 
24.5  | 
%  | 
   | 
$  | 
300,763  | 
 
  | 
   | 
24.3  | 
%  | 
   | 
$  | 
297,135  | 
 
  | 
   | 
24.2  | 
%  | 
 
Selling, general and administrative expense:  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Health Services  | 
   | 
$  | 
35,190  | 
 
  | 
   | 
9.6  | 
%  | 
   | 
$  | 
29,914  | 
 
  | 
   | 
8.6  | 
%  | 
   | 
$  | 
68,606  | 
 
  | 
   | 
9.6  | 
%  | 
   | 
$  | 
58,021  | 
 
  | 
   | 
8.4  | 
%  | 
 
U.S. Federal Services  | 
   | 
17,540  | 
 
  | 
   | 
15.1  | 
%  | 
   | 
18,927  | 
 
  | 
   | 
13.0  | 
%  | 
   | 
34,188  | 
 
  | 
   | 
13.7  | 
%  | 
   | 
38,622  | 
 
  | 
   | 
13.5  | 
%  | 
 
Human Services  | 
   | 
19,829  | 
 
  | 
   | 
15.2  | 
%  | 
   | 
19,663  | 
 
  | 
   | 
15.4  | 
%  | 
   | 
39,324  | 
 
  | 
   | 
14.6  | 
%  | 
   | 
36,902  | 
 
  | 
   | 
14.6  | 
%  | 
 
Other (2)   | 
   | 
—  | 
 
  | 
   | 
NM  | 
 
  | 
   | 
92  | 
 
  | 
   | 
NM  | 
 
  | 
   | 
—  | 
 
  | 
   | 
NM  | 
 
  | 
   | 
449  | 
 
  | 
   | 
NM  | 
 
  | 
 
Total  | 
   | 
$  | 
72,559  | 
 
  | 
   | 
11.8  | 
%  | 
   | 
$  | 
68,596  | 
 
  | 
   | 
11.0  | 
%  | 
   | 
$  | 
142,118  | 
 
  | 
   | 
11.5  | 
%  | 
   | 
$  | 
133,994  | 
 
  | 
   | 
10.9  | 
%  | 
 
Operating income:  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Health Services  | 
   | 
$  | 
63,017  | 
 
  | 
   | 
17.2  | 
%  | 
   | 
$  | 
56,540  | 
 
  | 
   | 
16.2  | 
%  | 
   | 
$  | 
120,657  | 
 
  | 
   | 
16.8  | 
%  | 
   | 
$  | 
106,667  | 
 
  | 
   | 
15.5  | 
%  | 
 
U.S. Federal Services  | 
   | 
9,834  | 
 
  | 
   | 
8.5  | 
%  | 
   | 
17,644  | 
 
  | 
   | 
12.1  | 
%  | 
   | 
26,544  | 
 
  | 
   | 
10.6  | 
%  | 
   | 
35,525  | 
 
  | 
   | 
12.4  | 
%  | 
 
Human Services  | 
   | 
3,393  | 
 
  | 
   | 
2.6  | 
%  | 
   | 
9,629  | 
 
  | 
   | 
7.5  | 
%  | 
   | 
11,444  | 
 
  | 
   | 
4.3  | 
%  | 
   | 
21,398  | 
 
  | 
   | 
8.5  | 
%  | 
 
Amortization of intangible assets  | 
   | 
(2,603  | 
)  | 
   | 
NM  | 
 
  | 
   | 
(3,386  | 
)  | 
   | 
NM  | 
 
  | 
   | 
(5,321  | 
)  | 
   | 
NM  | 
 
  | 
   | 
(6,788  | 
)  | 
   | 
NM  | 
 
  | 
 
Restructuring costs (3)  | 
   | 
(2,320  | 
)  | 
   | 
NM  | 
 
  | 
   | 
—  | 
 
  | 
   | 
NM  | 
 
  | 
   | 
(2,320  | 
)  | 
   | 
NM  | 
 
  | 
   | 
(2,242  | 
)  | 
   | 
NM  | 
 
  | 
 
Other (2)  | 
   | 
—  | 
 
  | 
   | 
NM  | 
 
  | 
   | 
(92  | 
)  | 
   | 
NM  | 
 
  | 
   | 
—  | 
 
  | 
   | 
NM  | 
 
  | 
   | 
(449  | 
)  | 
   | 
NM  | 
 
  | 
 
Total  | 
   | 
$  | 
71,321  | 
 
  | 
   | 
11.6  | 
%  | 
   | 
$  | 
80,335  | 
 
  | 
   | 
12.9  | 
%  | 
   | 
$  | 
151,004  | 
 
  | 
   | 
12.2  | 
%  | 
   | 
$  | 
154,111  | 
 
  | 
   | 
12.5  | 
%  | 
 
  
(1)    Percentage of respective segment revenue. Percentages not considered meaningful are marked “NM.” 
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(2) 
  | 
Other costs and credits relate to SG&A balances that do not relate directly to segment business activities. During the six months ended March 31, 2017 we incurred $0.4 million of legal costs pertaining to a matter which occurred in fiscal year 2009. 
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(3)  | 
During fiscal years 2018 and 2017, we incurred costs in restructuring our United Kingdom Human Services business. See "Note 5. Supplemental disclosures" for more information.  | 
 
 
 
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