Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Total revenues	$ 592,256	$ 517,474	$ 1,129,293	$ 956,343
Operating expenses:
Selling, general and administrative	127,391	113,120	252,523	225,762
Independent research and development	34,314	31,360	67,788	64,733
Amortization of acquired intangible assets	2,027	2,435	4,064	4,888
Income (loss) from operations	18,425	(21,571)	10,360	(76,050)
Other income (expense):
Interest income	413	29	1,338	65
Interest expense	(9,540)	(14,074)	(20,714)	(25,398)
Income (loss) before income taxes	9,298	(35,616)	(9,016)	(101,383)
(Provision for) benefit from income taxes	(2,390)	9,704	4,820	38,909
Equity in income of unconsolidated affiliate, net	1,154	314	2,521	1,379
Net income (loss)	8,062	(25,598)	(1,675)	(61,095)
Less: net income (loss) attributable to noncontrolling interests, net of tax	4,868	126	6,599	(1,361)
Net income (loss) attributable to Viasat, Inc.	$ 3,194	$ (25,724)	$ (8,274)	$ (59,734)
Basic net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.05	$ (0.43)	$ (0.14)	$ (1.00)
Diluted net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.05	$ (0.43)	$ (0.14)	$ (1.00)
Shares used in computing basic net income (loss) per share	61,480	59,734	61,200	59,470
Shares used in computing diluted net income (loss) per share	62,761	59,734	61,200	59,470
Comprehensive income (loss):
Net income (loss)	$ 8,062	$ (25,598)	$ (1,675)	$ (61,095)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on hedging, net of tax	3	38	48	(288)
Foreign currency translation adjustments, net of tax	(1,436)	(7,104)	(3,720)	(6,901)
Other comprehensive loss, net of tax	(1,433)	(7,066)	(3,672)	(7,189)
Comprehensive income (loss)	6,629	(32,664)	(5,347)	(68,284)
Less: comprehensive income (loss) attributable to noncontrolling interests, net of tax	4,868	126	6,599	(1,361)
Comprehensive income (loss) attributable to Viasat, Inc.	1,761	(32,790)	(11,946)	(66,923)
Product [Member]
Revenues:
Total revenues	306,830	280,435	570,445	498,564
Operating expenses:
Cost of revenues	223,075	216,900	420,015	390,348
Service [Member]
Revenues:
Total revenues	285,426	237,039	558,848	457,779
Operating expenses:
Cost of revenues	$ 187,024	$ 175,230	$ 374,543	$ 346,662