Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Allocation of Other Acquired Intangible Assets and Related Accumulated Amortization

Other acquired intangible assets and the related accumulated amortization as of March 31, 2025 and 2024 were as follows:

			As of March 31, 2025							As of March 31, 2024
	Weighted Average Useful Life		Total		Accumulated Amortization			Net Book Value		Total		Accumulated Amortization			Net Book Value
	(In years)		(In thousands)
Contracts and customer relationships		11	$	1,432,562	$	(280,309	)	$	1,152,253	$	1,437,738	$	(148,271	)	$	1,289,467
Orbital slots and spectrum assets		12		1,088,600		(173,600	)		915,000		1,088,600		(83,600	)		1,005,000
Technology		7		247,921		(131,805	)		116,116		251,889		(108,414	)		143,475
Trade names		8		116,949		(38,453	)		78,496		117,280		(24,770	)		92,510
Other		9		18,017		(9,105	)		8,912		21,792		(7,777	)		14,015
Total other acquired intangible assets		11	$	2,904,049	$	(633,272	)	$	2,270,777	$	2,917,299	$	(372,832	)	$	2,544,467

Expected Amortization Expense for Acquired Intangible Assets

Expected amortization expense for acquired intangible assets for each of the following periods is as follows:

	Amortization
	(In thousands)
Expected for fiscal year 2026	$	263,329
Expected for fiscal year 2027		263,329
Expected for fiscal year 2028		263,291
Expected for fiscal year 2029		262,266
Expected for fiscal year 2030		247,160
Thereafter		971,402
	$	2,270,777

Schedule of Goodwill by Segments

Goodwill by segments as of March 31, 2025 and 2024 was as follows:

	As of March 31, 2025		As of March 31, 2024
	(In thousands)
Communication services	$	1,582,083	$	1,581,937
Defense and advanced technologies		40,049		39,826
Total	$	1,622,132	$	1,621,763