v3.26.1
Segment Information - Segment Revenues, Expenses and Operating Profits (Losses) (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Revenues:    
Total revenues $ 1,156,543 $ 1,171,054
Expenses:    
Depreciation 233,708 257,701
Stock-based compensation expense 24,191 14,707
Total expenses 1,044,217 1,058,641
Operating profits (losses):    
Income (loss) from operations 47,308 46,672
Amortization of acquired intangible assets (65,018) (65,741)
Interest income 15,391 14,290
Interest expense (82,304) (100,357)
(Loss) gain on extinguishment of debt, net   (288)
Other income (expense), net (306) (5,164)
Income (loss) before income taxes (19,911) (44,847)
Product [Member]    
Revenues:    
Total revenues 324,105 344,684
Service [Member]    
Revenues:    
Total revenues 832,438 826,370
Operating Segments [Member]    
Operating profits (losses):    
Income (loss) from operations 112,326 112,413
Operating Segments [Member] | Communication Services [Member]    
Revenues:    
Total revenues 825,083 827,371
Expenses:    
Depreciation 221,193 246,749
Stock-based compensation expense 14,153 8,312
Other than acquired intangible assets amortization [1] 11,234 14,009
Acquisition and transaction related expenses 2,890 7,874
Other segment items [2] 513,184 509,551
Total expenses [3] 762,654 786,495
Operating profits (losses):    
Income (loss) from operations 62,429 40,876
Operating Segments [Member] | Communication Services [Member] | Government Satcom Services [Member]    
Revenues:    
Total revenues 211,734 191,768
Operating Segments [Member] | Communication Services [Member] | Aviation Services [Member]    
Revenues:    
Total revenues 324,381 292,892
Operating Segments [Member] | Communication Services [Member] | Maritime Services [Member]    
Revenues:    
Total revenues 109,502 117,801
Operating Segments [Member] | Communication Services [Member] | Fixed Services and Other Services [Member]    
Revenues:    
Total revenues 127,425 174,737
Operating Segments [Member] | Communication Services [Member] | Product [Member]    
Revenues:    
Total revenues 52,041 50,173
Operating Segments [Member] | Communication Services [Member] | Service [Member]    
Revenues:    
Total revenues 773,042 777,198
Operating Segments [Member] | Defense and Advanced Technologies [Member]    
Revenues:    
Total revenues 331,460 343,683
Expenses:    
Depreciation 12,515 10,952
Stock-based compensation expense 10,038 6,395
Other than acquired intangible assets amortization [1] 5,281 4,893
Acquisition and transaction related expenses 1,166 1,851
Other segment items 252,563 248,055
Total expenses [3] 281,563 272,146
Operating profits (losses):    
Income (loss) from operations 49,897 71,537
Operating Segments [Member] | Defense and Advanced Technologies [Member] | Information Security and Cyber Defense Products [Member]    
Revenues:    
Total revenues 93,991 102,148
Operating Segments [Member] | Defense and Advanced Technologies [Member] | Space and Mission Systems Products [Member]    
Revenues:    
Total revenues 66,860 87,973
Operating Segments [Member] | Defense and Advanced Technologies [Member] | Tactical Networking Products [Member]    
Revenues:    
Total revenues 92,570 68,279
Operating Segments [Member] | Defense and Advanced Technologies [Member] | Advanced Technologies and Other Products [Member]    
Revenues:    
Total revenues 18,643 36,111
Operating Segments [Member] | Defense and Advanced Technologies [Member] | Product [Member]    
Revenues:    
Total revenues 272,064 294,511
Operating Segments [Member] | Defense and Advanced Technologies [Member] | Service [Member]    
Revenues:    
Total revenues 59,396 49,172
Corporate, Non-Segment [Member]    
Operating profits (losses):    
Amortization of acquired intangible assets (65,018) (65,741)
Interest income 15,391 14,290
Interest expense (82,304) (100,357)
(Loss) gain on extinguishment of debt, net 0 (288)
Other income (expense), net $ (306) $ (5,164)
[1] Including amortization of capitalized cloud computing implementation costs.
[2] Other segment items include operating expenses such as cost of service and product revenues, selling, general and administrative expenses, IR&D expenses and related activities excluding allocable portion of depreciation, other than acquired intangibles amortization, stock-based compensation, and certain significant items that are disclosed under each segment.
[3] For the three months ended June 30, 2026 and 2025, IR&D expense and related activities, including allocable depreciation, stock-based compensation and other expenses were $28.4 million and $19.2 million, respectively, for the communication services segment, and $17.1 million and $15.0 million, respectively, for the defense and advanced technologies segment.