Quarterly report pursuant to Section 13 or 15(d)

Business Segments - Financial information by segment (Details)

v3.22.4
Business Segments - Financial information by segment (Details)
$ in Thousands
 3 Months Ended
Dec. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
Financial information for each of the Company's business segments    
Number of operating segments | segment 3  
Revenue:    
Revenue $ 1,249,246 $ 1,150,876
Gross profit:    
Gross profit $ 244,747 $ 228,155
Gross profit (as a percent) 19.60% 19.80%
Selling, general, and administrative expenses:    
Selling, general, and administrative expenses $ 146,452 $ 124,221
Selling, general, and administrative expense (as a percent) 11.70% 10.80%
Operating income:    
Operating income $ 74,777 $ 81,529
Operating income (as a percent) 6.00% 7.10%
Amortization of intangible assets $ (23,518) $ (22,405)
Segment Reconciling Items    
Selling, general, and administrative expenses:    
Selling, general, and administrative expenses 572 2,854
Operating income:    
Amortization of intangible assets (23,518) (22,405)
U.S. Federal Services | Operating Segments    
Revenue:    
Revenue 618,167 581,871
Gross profit:    
Gross profit $ 122,694 $ 126,576
Gross profit (as a percent) 19.80% 21.80%
Selling, general, and administrative expenses:    
Selling, general, and administrative expenses $ 71,649 $ 64,925
Selling, general, and administrative expense (as a percent) 11.60% 11.20%
Operating income:    
Operating income $ 51,045 $ 61,651
Operating income (as a percent) 8.30% 10.60%
U.S. Services | Operating Segments    
Revenue:    
Revenue $ 439,478 $ 386,417
Gross profit:    
Gross profit $ 83,598 $ 89,699
Gross profit (as a percent) 19.00% 23.20%
Selling, general, and administrative expenses:    
Selling, general, and administrative expenses $ 45,842 $ 35,102
Selling, general, and administrative expense (as a percent) 10.40% 9.10%
Operating income:    
Operating income $ 37,756 $ 54,597
Operating income (as a percent) 8.60% 14.10%
Outside the U.S. | Operating Segments    
Revenue:    
Revenue $ 191,601 $ 182,588
Gross profit:    
Gross profit $ 38,455 $ 11,880
Gross profit (as a percent) 20.10% 6.50%
Selling, general, and administrative expenses:    
Selling, general, and administrative expenses $ 28,389 $ 21,340
Selling, general, and administrative expense (as a percent) 14.80% 11.70%
Operating income:    
Operating income $ 10,066 $ (9,460)
Operating income (as a percent) 5.30% (5.20%)
Other | Operating Segments    
Operating income:    
Operating income $ (572) $ (2,854)