Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2024

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, 2024 and 2023 is as follows:

			As of March 31, 2024							As of March 31, 2023
	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	$	1,437,738	$	(148,271	)	$	1,289,467	$	132,563	$	(34,202	)	$	98,361
Orbital slots and spectrum assets		12		1,088,600		(83,600	)		1,005,000		8,600		(8,600	)		—
Technology		7		251,889		(108,414	)		143,475		151,327		(83,949	)		67,378
Trade names		8		117,280		(24,770	)		92,510		32,253		(12,657	)		19,596
Other		11		21,792		(7,777	)		14,015		21,782		(5,912	)		15,870
Total other acquired intangible assets		11	$	2,917,299	$	(372,832	)	$	2,544,467	$	346,525	$	(145,320	)	$	201,205

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 2025	$	269,313
Expected for fiscal year 2026		269,161
Expected for fiscal year 2027		269,161
Expected for fiscal year 2028		269,161
Expected for fiscal year 2029		268,416
Thereafter		1,199,255
	$	2,544,467