Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.19.1
Segment Information (Details)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2019
USD ($)
segment
Mar. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
Financial information for each of the Company's business segments          
Number of operating segments | segment     3    
Revenue:          
Revenue $ 736,520 $ 612,787 $ 1,401,139 $ 1,235,935  
Gross profit:          
Gross profit $ 169,422 $ 148,803 $ 328,687 $ 300,763  
Gross profit (as a percent) 23.00% 24.30% 23.50% 24.30%  
Selling, general and administrative expense:          
Selling, general and administrative expenses $ 78,102 $ 74,879 $ 157,773 $ 144,438  
Selling, general, and administrative expense (as a percent) 10.60% 12.20% 11.30% 11.70%  
Operating income:          
Operating income $ 81,801 $ 71,321 $ 155,937 $ 151,004  
Operating income (as a percent) 11.10% 11.60% 11.10% 12.20%  
Amortization of intangible assets $ (9,519) $ (2,603) $ (14,977) $ (5,321)  
General Dynamics Information Technology's Citizen Engagement Centers          
Operating income:          
Business combination, acquisition related costs     2,700   $ 500
Segment Reconciling Items          
Operating income:          
Amortization of intangible assets (9,519) (2,603) (14,977) (5,321)  
Restructuring costs 0 (2,320) 0 (2,320)  
Other          
Selling, general and administrative expense:          
Selling, general and administrative expenses (394) 0 1,698 0  
Operating income:          
Operating income 394 0 (1,698) 0  
U.S. Health & Human Services          
Revenue:          
Revenue 290,737   584,950    
U.S. Health & Human Services | Operating Segments          
Revenue:          
Revenue 290,737 306,249   610,490  
Gross profit:          
Gross profit $ 86,260 $ 86,586 $ 174,291 $ 170,817  
Gross profit (as a percent) 29.70% 28.30% 29.80% 28.00%  
Selling, general and administrative expense:          
Selling, general and administrative expenses $ 29,400 $ 36,616 $ 61,539 $ 71,421  
Selling, general, and administrative expense (as a percent) 10.10% 12.00% 10.50% 11.70%  
Operating income:          
Operating income $ 56,860 $ 49,970 $ 112,752 $ 99,396  
Operating income (as a percent) 19.60% 16.30% 19.30% 16.30%  
U.S. Federal Services          
Revenue:          
Revenue $ 289,736   $ 506,723    
U.S. Federal Services | Operating Segments          
Revenue:          
Revenue 289,736 $ 116,327   $ 249,310  
Gross profit:          
Gross profit $ 60,696 $ 27,374 $ 108,681 $ 60,732  
Gross profit (as a percent) 20.90% 23.50% 21.40% 24.40%  
Selling, general and administrative expense:          
Selling, general and administrative expenses $ 31,104 $ 17,540 $ 57,736 $ 34,188  
Selling, general, and administrative expense (as a percent) 10.70% 15.10% 11.40% 13.70%  
Operating income:          
Operating income $ 29,592 $ 9,834 $ 50,945 $ 26,544  
Operating income (as a percent) 10.20% 8.50% 10.10% 10.60%  
Outside the U.S.          
Revenue:          
Revenue $ 156,047   $ 309,466    
Outside the U.S. | Operating Segments          
Revenue:          
Revenue 156,047 $ 190,211   $ 376,135  
Gross profit:          
Gross profit $ 22,466 $ 34,843 $ 45,715 $ 69,214  
Gross profit (as a percent) 14.40% 18.30% 14.80% 18.40%  
Selling, general and administrative expense:          
Selling, general and administrative expenses $ 17,992 $ 18,403 $ 36,800 $ 36,509  
Selling, general, and administrative expense (as a percent) 11.50% 9.70% 11.90% 9.70%  
Operating income:          
Operating income $ 4,474 $ 16,440 $ 8,915 $ 32,705  
Operating income (as a percent) 2.90% 8.60% 2.90% 8.70%