Annual report [Section 13 and 15(d), not S-K Item 405]

Business Segments - Financial Information by Segment (Details)

v3.25.3
Business Segments - Financial Information by Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Financial information for each of the Company's business segments      
Revenue $ 5,431,276 $ 5,306,197 $ 4,904,728
Cost of revenue 4,097,833 4,054,545 3,876,120
Gross profit 1,333,443 1,251,652 1,028,608
Other segment items 670,633 663,343 605,499
Segment operating income 662,810 588,309 423,109
Divestiture related charges (39,549) (1,018) (883)
Amortization of intangible assets (92,047) (91,570) (94,591)
Operating income 528,289 488,499 294,794
Depreciation and amortization: 41,669 33,957 54,725
Operating Segments | U.S. Federal Services      
Financial information for each of the Company's business segments      
Revenue 3,067,691 2,737,244 2,403,606
Cost of revenue $ 2,256,928 $ 2,071,482 $ 1,845,720
Cost of revenue (as a percent) 73.60% 75.70% 76.80%
Gross profit $ 810,763 $ 665,762 $ 557,886
Gross profit (as a percent) 26.40% 24.30% 23.20%
Other segment items $ 341,608 $ 332,140 $ 308,197
Other segment items (as a percent) 11.10% 12.10% 12.80%
Segment operating income $ 469,155 $ 333,622 $ 249,689
Segment operating income (as a percent) 15.30% 12.20% 10.40%
Depreciation and amortization: $ 17,146 $ 10,503 $ 18,336
Segment depreciation and amortization (as a percent) 0.60% 0.40% 0.80%
Operating Segments | U.S. Services      
Financial information for each of the Company's business segments      
Revenue $ 1,763,691 $ 1,911,813 $ 1,812,069
Cost of revenue $ 1,352,709 $ 1,432,026 $ 1,434,528
Cost of revenue (as a percent) 76.70% 74.90% 79.20%
Gross profit $ 410,982 $ 479,787 $ 377,541
Gross profit (as a percent) 23.30% 25.10% 20.80%
Other segment items $ 239,718 $ 232,805 $ 194,991
Other segment items (as a percent) 13.60% 12.20% 10.80%
Segment operating income $ 171,264 $ 246,982 $ 182,550
Segment operating income (as a percent) 9.70% 12.90% 10.10%
Depreciation and amortization: $ 17,295 $ 16,079 $ 22,674
Segment depreciation and amortization (as a percent) 1.00% 0.80% 1.30%
Operating Segments | Outside the US      
Financial information for each of the Company's business segments      
Revenue $ 599,894 $ 657,140 $ 689,053
Cost of revenue $ 488,196 $ 551,037 $ 595,872
Cost of revenue (as a percent) 81.40% 83.90% 86.50%
Gross profit $ 111,698 $ 106,103 $ 93,181
Gross profit (as a percent) 18.60% 16.10% 13.50%
Other segment items $ 89,307 $ 98,398 $ 102,311
Other segment items (as a percent) 14.90% 15.00% 14.80%
Segment operating income $ 22,391 $ 7,705 $ (9,130)
Segment operating income (as a percent) 3.70% 1.20% (1.30%)
Depreciation and amortization: $ 7,228 $ 7,375 $ 13,715
Segment depreciation and amortization (as a percent) 1.20% 1.10% 2.00%
Segment Reconciling Items      
Financial information for each of the Company's business segments      
Divestiture related charges $ (39,549) $ (1,018) $ (3,751)
Other (2,925) (7,222) (29,973)
Amortization of intangible assets (92,047) (91,570) (94,591)
Segment Reconciling Items | MOVEit      
Financial information for each of the Company's business segments      
Other $ (3,000) $ (2,900) $ (29,300)