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v3.22.2.2

Business Segments - Financial information by segment (Details) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2022 USD ($) segment | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($)
Financial information for each of the Company's business segments |  |  |
Number of operating segments | segment | 3 |  |
Revenue: |  |  |
Revenue | $ 4,631,018 | $ 4,254,485 | $ 3,461,537
Gross profit: |  |  |
Gross profit | $ 939,810 | $ 946,975 | $ 711,002
Gross profit (as a percent) | 20.30% | 22.30% | 20.50%
Selling, general, and administrative expenses: |  |  |
Selling, general, and administrative expenses | $ 534,493 | $ 494,088 | $ 387,090
Selling, general, and administrative expense (as a percent) | 11.50% | 11.60% | 11.20%
Gain on sale of a business | $ 0 | $ 0 | $ (1,718)
Operating income: |  |  |
Operating income | $ 325,898 | $ 408,530 | $ 288,278
Operating income (as a percent) | 7.00% | 9.60% | 8.30%
Amortization of intangible assets | $ (90,465) | $ (44,357) | $ (35,634)
Gain on sale of a business | 0 | 0 | (1,718)
Gain on sale of land and building | 11,046 | 0 | 0
Depreciation and amortization: |  |  |
Depreciation and amortization | $ 42,330 | $ 46,361 | $ 64,527
Depreciation and amortization (as a percent) | 0.90% | 1.10% | 1.90%
Land and Building |  |  |
Operating income: |  |  |
Gain on sale of land and building | $ 11,000 |  |
Segment Reconciling Items |  |  |
Selling, general, and administrative expenses: |  |  |
Selling, general, and administrative expenses | (3,454) | $ 10,746 | $ 4,358
Gain on sale of a business | 0 | 0 | (1,718)
Operating income: |  |  |
Amortization of intangible assets | (90,465) | (44,357) | (35,634)
Gain on sale of a business | 0 | 0 | (1,718)
Gain on sale of land and building | 11,046 | 0 | 0
Other | 3,454 | (10,746) | (4,358)
U.S. Federal Services | Operating Segments |  |  |
Revenue: |  |  |
Revenue | 2,259,744 | 1,893,284 | 1,633,337
Gross profit: |  |  |
Gross profit | $ 519,440 | $ 432,551 | $ 318,925
Gross profit (as a percent) | 23.00% | 22.80% | 19.50%
Selling, general, and administrative expenses: |  |  |
Selling, general, and administrative expenses | $ 284,509 | $ 243,485 | $ 186,023
Selling, general, and administrative expense (as a percent) | 12.60% | 12.90% | 11.40%
Operating income: |  |  |
Operating income | $ 234,931 | $ 189,066 | $ 132,902
Operating income (as a percent) | 10.40% | 10.00% | 8.10%
Depreciation and amortization: |  |  |
Depreciation and amortization | $ 12,332 | $ 12,986 | $ 25,153
Depreciation and amortization (as a percent) | 0.50% | 0.70% | 1.50%
U.S. Services | Operating Segments |  |  |
Revenue: |  |  |
Revenue | $ 1,607,612 | $ 1,662,110 | $ 1,329,274
Gross profit: |  |  |
Gross profit | $ 343,004 | $ 408,050 | $ 360,272
Gross profit (as a percent) | 21.30% | 24.60% | 27.10%
Selling, general, and administrative expenses: |  |  |
Selling, general, and administrative expenses | $ 160,902 | $ 153,609 | $ 132,489
Selling, general, and administrative expense (as a percent) | 10.00% | 9.20% | 10.00%
Operating income: |  |  |
Operating income | $ 182,102 | $ 254,441 | $ 227,783
Operating income (as a percent) | 11.30% | 15.30% | 17.10%
Depreciation and amortization: |  |  |
Depreciation and amortization | $ 16,528 | $ 20,350 | $ 20,951
Depreciation and amortization (as a percent) | 1.00% | 1.20% | 1.60%
Outside the U.S. | Operating Segments |  |  |
Revenue: |  |  |
Revenue | $ 763,662 | $ 699,091 | $ 498,926
Gross profit: |  |  |
Gross profit | $ 77,366 | $ 106,374 | $ 31,805
Gross profit (as a percent) | 10.10% | 15.20% | 6.40%
Selling, general, and administrative expenses: |  |  |
Selling, general, and administrative expenses | $ 92,536 | $ 86,248 | $ 65,938
Selling, general, and administrative expense (as a percent) | 12.10% | 12.30% | 13.20%
Operating income: |  |  |
Operating income | $ (15,170) | $ 20,126 | $ (34,133)
Operating income (as a percent) | (2.00%) | 2.90% | (6.80%)
Depreciation and amortization: |  |  |
Depreciation and amortization | $ 13,470 | $ 13,025 | $ 18,423
Depreciation and amortization (as a percent) | 1.80% | 1.90% | 3.70%

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