Quarterly report pursuant to Section 13 or 15(d)

Business Segments - Financial information by segment (Details)

v3.22.2
Business Segments - Financial information by segment (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
segment
Jun. 30, 2021
USD ($)
Financial information for each of the Company's business segments        
Number of operating segments | segment     3  
Revenue:        
Revenue $ 1,125,785 $ 1,243,520 $ 3,453,987 $ 3,148,354
Gross profit:        
Gross profit $ 210,221 $ 291,856 $ 666,827 $ 728,569
Gross profit (as a percent) 18.70% 23.50% 19.30% 23.10%
Selling, general, and administrative expenses:        
Selling, general, and administrative expenses $ 132,974 $ 140,129 $ 387,502 $ 364,498
Selling, general, and administrative expense (as a percent) 11.80% 11.30% 11.20% 11.60%
Operating income/(loss):        
Operating income $ 54,557 $ 139,595 $ 211,374 $ 340,353
Operating income (as a percent) 4.80% 11.20% 6.10% 10.80%
Amortization of intangible assets $ (22,690) $ (12,132) $ (67,951) $ (23,718)
Change in acquisition-related contingent consideration (2,300)   (2,300)  
Segment Reconciling Items        
Selling, general, and administrative expenses:        
Selling, general, and administrative expenses (1,944) 4,903 (16) 9,948
Operating income/(loss):        
Amortization of intangible assets (22,690) (12,132) (67,951) (23,718)
Other 1,944 (4,903) 16 (9,948)
U.S. Services | Operating Segments        
Revenue:        
Revenue 399,320 436,338 1,183,814 1,269,487
Gross profit:        
Gross profit $ 74,135 $ 104,814 $ 248,805 $ 323,256
Gross profit (as a percent) 18.60% 24.00% 21.00% 25.50%
Selling, general, and administrative expenses:        
Selling, general, and administrative expenses $ 42,351 $ 42,606 $ 115,726 $ 116,655
Selling, general, and administrative expense (as a percent) 10.60% 9.80% 9.80% 9.20%
Operating income/(loss):        
Operating income $ 31,784 $ 62,208 $ 133,079 $ 206,601
Operating income (as a percent) 8.00% 14.30% 11.20% 16.30%
U.S. Federal Services | Operating Segments        
Revenue:        
Revenue $ 525,519 $ 617,601 $ 1,680,678 $ 1,352,982
Gross profit:        
Gross profit $ 124,203 $ 155,776 $ 365,932 $ 312,405
Gross profit (as a percent) 23.60% 25.20% 21.80% 23.10%
Selling, general, and administrative expenses:        
Selling, general, and administrative expenses $ 69,466 $ 69,647 $ 203,340 $ 172,877
Selling, general, and administrative expense (as a percent) 13.20% 11.30% 12.10% 12.80%
Operating income/(loss):        
Operating income $ 54,737 $ 86,129 $ 162,592 $ 139,528
Operating income (as a percent) 10.40% 13.90% 9.70% 10.30%
Outside the U.S. | Operating Segments        
Revenue:        
Revenue $ 200,946 $ 189,581 $ 589,495 $ 525,885
Gross profit:        
Gross profit $ 11,883 $ 31,266 $ 52,090 $ 92,908
Gross profit (as a percent) 5.90% 16.50% 8.80% 17.70%
Selling, general, and administrative expenses:        
Selling, general, and administrative expenses $ 23,101 $ 22,973 $ 68,452 $ 65,018
Selling, general, and administrative expense (as a percent) 11.50% 12.10% 11.60% 12.40%
Operating income/(loss):        
Operating income $ (11,218) $ 8,293 $ (16,362) $ 27,890
Operating income (as a percent) (5.60%) 4.40% (2.80%) 5.30%