Composition of Certain Balance Sheet Captions (Tables)

12 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Composition of Certain Balance Sheet Captions

	As of March 31, 2017			As of March 31, 2016
	(In thousands)
Accounts receivable, net:
Billed	$	145,626		$	146,309
Unbilled		119,565			141,568
Allowance for doubtful accounts		(1,470	)		(1,153	)
	$	263,721		$	286,724
Inventories:
Raw materials	$	56,096		$	46,757
Work in process		25,820			27,200
Finished goods		81,285			71,204
	$	163,201		$	145,161
Prepaid expenses and other current assets:
Prepaid expenses	$	51,856		$	41,784
Other		5,980			5,799
	$	57,836		$	47,583
Satellites, net:
Satellites (estimated useful life of 10-17 years)	$	559,380		$	559,094
Capital lease of satellite capacity — Anik F2 (estimated useful life of 10 years)		99,090			99,090
Satellites under construction		776,354			515,696
		1,434,824			1,173,880
Less: accumulated depreciation and amortization		(326,554	)		(275,683	)
	$	1,108,270		$	898,197
Property and equipment, net:
Equipment and software (estimated useful life of 2-7 years)	$	679,008		$	568,663
CPE leased equipment (estimated useful life of 4-5 years)		271,917			260,409
Furniture and fixtures (estimated useful life of 7 years)		30,539			25,501
Leasehold improvements (estimated useful life of 2-17 years)		80,727			71,895
Building (estimated useful life of 24 years)		8,923			8,923
Land		14,573			41,960
Construction in progress		116,902			73,535
		1,202,589			1,050,886
Less: accumulated depreciation		(661,981	)		(563,976	)
	$	540,608		$	486,910
Other assets:
Investment in unconsolidated affiliate	$	141,894		$	—
Deferred income taxes		134,764			134,721
Capitalized software costs, net		203,686			163,061
Patents, orbital slots and other licenses, net		16,500			16,900
Other		32,522			25,323
	$	529,366		$	340,005
Accrued liabilities:
Collections in excess of revenues and deferred revenues	$	76,682		$	64,624
Accrued employee compensation		41,691			35,056
Accrued vacation		33,214			28,646
Warranty reserve, current portion		7,796			7,867
Current portion of other long-term debt		288			274
Other		65,576			47,877
	$	225,247		$	184,344
Other liabilities:
Deferred revenue, long-term portion	$	4,617		$	5,470
Deferred rent, long-term portion		10,743			8,808
Warranty reserve, long-term portion		3,262			3,567
Satellite performance incentives obligation, long-term portion		19,164			19,514
Deferred income taxes, long-term		1,936			12
Other		3,000			—
	$	42,722		$	37,371