Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total revenues	$ 2,256,107	$ 2,309,238	$ 2,068,258
Operating expenses:
Selling, general and administrative	512,316	523,085	458,458
Independent research and development	115,792	130,434	123,044
Amortization of acquired intangible assets	5,482	7,611	9,655
Income (loss) from operations	58,233	38,421	(60,620)
Other income (expense):
Interest income	440	1,648	149
Interest expense	(32,687)	(38,641)	(50,010)
Income (loss) before income taxes	25,986	1,428	(110,481)
(Provision for) benefit from income taxes	(9,441)	7,915	41,014
Equity in income of unconsolidated affiliate, net	556	4,470	2,998
Net income (loss)	17,101	13,813	(66,469)
Less: net income attributable to noncontrolling interests, net of tax	13,410	14,025	1,154
Net income (loss) attributable to Viasat, Inc.	$ 3,691	$ (212)	$ (67,623)
Net income (loss) per share attributable to Viasat, Inc. common stockholders:
Basic net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.06	$ 0.00	$ (1.13)
Diluted net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.06	$ 0.00	$ (1.13)
Shares used in computing basic net income (loss) per share	66,444	61,632	59,942
Shares used in computing diluted net income (loss) per share	67,020	61,632	59,942
Comprehensive income (loss):
Net income (loss)	$ 17,101	$ 13,813	$ (66,469)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on hedging, net of tax		235	(242)
Foreign currency translation adjustments, net of tax	15,851	(11,621)	(9,985)
Other comprehensive income (loss), net of tax	15,851	(11,386)	(10,227)
Comprehensive income (loss)	32,952	2,427	(76,696)
Less: comprehensive income attributable to noncontrolling interests, net of tax	13,410	14,025	1,154
Comprehensive income (loss) attributable to Viasat, Inc.	19,542	(11,598)	(77,850)
Product [Member]
Revenues:
Total revenues	1,044,450	1,172,541	1,092,691
Operating expenses:
Cost of revenues	774,893	845,757	834,472
Service [Member]
Revenues:
Total revenues	1,211,657	1,136,697	975,567
Operating expenses:
Cost of revenues	$ 789,391	$ 763,930	$ 703,249