Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Total revenues	$ 554,278	$ 592,256	$ 1,084,766	$ 1,129,293
Operating expenses:
Selling, general and administrative	125,451	127,391	246,490	252,523
Independent research and development	27,531	34,314	55,167	67,788
Amortization of acquired intangible assets	1,300	2,027	2,858	4,064
Income from operations	12,683	18,425	7,369	10,360
Other income (expense):
Interest income	128	413	360	1,338
Interest expense	(9,790)	(9,540)	(19,314)	(20,714)
Income (loss) before income taxes	3,021	9,298	(11,585)	(9,016)
Benefit from (provision for) income taxes	687	(2,390)	6,435	4,820
Equity in (loss) income of unconsolidated affiliate, net	(317)	1,154	14	2,521
Net income (loss)	3,391	8,062	(5,136)	(1,675)
Less: net income attributable to noncontrolling interest, net of tax	1,428	4,868	5,290	6,599
Net income (loss) attributable to Viasat, Inc.	$ 1,963	$ 3,194	$ (10,426)	$ (8,274)
Basic net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.03	$ 0.05	$ (0.16)	$ (0.14)
Diluted net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.03	$ 0.05	$ (0.16)	$ (0.14)
Shares used in computing basic net income (loss) per share	66,576	61,480	64,554	61,200
Shares used in computing diluted net income (loss) per share	67,006	62,761	64,554	61,200
Comprehensive income (loss):
Net income (loss)	$ 3,391	$ 8,062	$ (5,136)	$ (1,675)
Other comprehensive income (loss), net of tax:
Unrealized gain on hedging, net of tax		3		48
Foreign currency translation adjustments, net of tax	4,418	(1,436)	3,615	(3,720)
Other comprehensive income (loss), net of tax	4,418	(1,433)	3,615	(3,672)
Comprehensive income (loss)	7,809	6,629	(1,521)	(5,347)
Less: comprehensive income attributable to noncontrolling interest, net of tax	1,428	4,868	5,290	6,599
Comprehensive income (loss) attributable to Viasat, Inc.	6,381	1,761	(6,811)	(11,946)
Product [Member]
Revenues:
Total revenues	255,980	306,830	506,614	570,445
Operating expenses:
Cost of revenues	191,890	223,075	379,782	420,015
Service [Member]
Revenues:
Total revenues	298,298	285,426	578,152	558,848
Operating expenses:
Cost of revenues	$ 195,423	$ 187,024	$ 393,100	$ 374,543