Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.7.0.1
Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Revenue:        
Revenue $ 600,447 $ 617,094 $ 1,830,058 $ 1,780,269
Revenue (as a percent) 100.00% 100.00% 100.00% 100.00%
Gross profit:        
Gross profit $ 152,189 $ 151,379 $ 449,324 $ 409,261
Gross profit (as a percent) 25.30% 24.50% 24.60% 23.00%
Selling, general and administrative expense:        
Selling, general and administrative expenses $ 68,308 $ 69,706 $ 202,302 $ 199,916
Selling, general, and administrative expense (as a percent) 11.40% 11.30% 11.10% 11.20%
Operating income:        
Operating income $ 81,811 $ 84,609 $ 235,922 $ 205,295
Operating income (as a percent) 13.60% 13.70% 12.90% 11.50%
Amortization of intangible assets $ (2,720) $ (3,517) $ (9,508) $ (9,928)
Restructuring cost 0 0 (2,242) 0
Acquisition-related expenses 0 0 0 (575)
Gain on sale of a business 650 6,453 650 6,453
Segment Reconciling Items        
Operating income:        
Amortization of intangible assets (2,720) (3,517) (9,508) (9,928)
Restructuring cost 0 0 (2,242) 0
Acquisition-related expenses 0 0 0 (575)
Gain on sale of a business (650) (6,453) 650 (6,453)
Other        
Financial information for each of the Company's business segments        
Legal Costs   2,100   2,800
Selling, general and administrative expense:        
Selling, general and administrative expenses (90) 2,127 359 2,777
Operating income:        
Operating income 90 (2,127) (359) (2,777)
Health Services | Operating Segments        
Revenue:        
Revenue $ 335,090 $ 333,699 $ 1,024,813 $ 956,169
Revenue (as a percent) 100.00% 100.00% 100.00% 100.00%
Gross profit:        
Gross profit $ 83,269 $ 76,775 $ 247,957 $ 211,464
Gross profit (as a percent) 24.80% 23.00% 24.20% 22.10%
Selling, general and administrative expense:        
Selling, general and administrative expenses $ 31,716 $ 26,345 $ 89,737 $ 77,312
Selling, general, and administrative expense (as a percent) 9.50% 7.90% 8.80% 8.10%
Operating income:        
Operating income $ 51,553 $ 50,430 $ 158,220 $ 134,152
Operating income (as a percent) 15.40% 15.10% 15.40% 14.00%
U.S. Federal Services | Operating Segments        
Revenue:        
Revenue $ 131,589 $ 149,601 $ 418,257 $ 445,077
Revenue (as a percent) 100.00% 100.00% 100.00% 100.00%
Gross profit:        
Gross profit $ 33,627 $ 38,980 $ 107,774 $ 100,639
Gross profit (as a percent) 25.60% 26.10% 25.80% 22.60%
Selling, general and administrative expense:        
Selling, general and administrative expenses $ 17,757 $ 19,861 $ 56,379 $ 55,821
Selling, general, and administrative expense (as a percent) 13.50% 13.30% 13.50% 12.50%
Operating income:        
Operating income $ 15,870 $ 19,119 $ 51,395 $ 44,818
Operating income (as a percent) 12.10% 12.80% 12.30% 10.10%
Human Services | Operating Segments        
Revenue:        
Revenue $ 133,768 $ 133,794 $ 386,988 $ 379,023
Revenue (as a percent) 100.00% 100.00% 100.00% 100.00%
Gross profit:        
Gross profit $ 35,293 $ 35,624 $ 93,593 $ 97,158
Gross profit (as a percent) 26.40% 26.60% 24.20% 25.60%
Selling, general and administrative expense:        
Selling, general and administrative expenses $ 18,925 $ 21,373 $ 55,827 $ 64,006
Selling, general, and administrative expense (as a percent) 14.10% 16.00% 14.40% 16.90%
Operating income:        
Operating income $ 16,368 $ 14,251 $ 37,766 $ 33,152
Operating income (as a percent) 12.20% 10.70% 9.80% 8.70%