Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

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 2020	$	7,485
Expected for fiscal year 2021		5,101
Expected for fiscal year 2022		3,278
Expected for fiscal year 2023		2,973
Expected for fiscal year 2024		2,458
Thereafter		1,006
	$	22,301

Allocation of Other Acquired Intangible Assets and Related Accumulated Amortization

The allocation of the other acquired intangible assets and the related accumulated amortization as of March 31, 2019 and 2018 is as follows:

			As of March 31, 2019							As of March 31, 2018
	Weighted Average Useful Life		Total		Accumulated Amortization			Net Book Value		Total		Accumulated Amortization			Net Book Value
	(In years)		(In thousands)
Technology		6	$	89,972	$	(73,992	)	$	15,980	$	90,652	$	(69,387	)	$	21,265
Contracts and customer relationships		7		103,283		(96,970	)		6,313		103,808		(94,584	)		9,224
Satellite co-location rights		9		8,600		(8,592	)		8		8,600		(7,668	)		932
Trade name		3		5,940		(5,940	)		—		5,940		(5,940	)		—
Other		6		9,989		(9,989	)		—		10,137		(9,696	)		441
Total other acquired intangible assets			$	217,784	$	(195,483	)	$	22,301	$	219,137	$	(187,275	)	$	31,862