Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Total revenues	$ 588,224	$ 554,694	$ 1,717,517	$ 1,511,037
Operating expenses:
Selling, general and administrative	136,005	114,566	388,528	340,328
Independent research and development	32,164	28,928	99,952	93,661
Amortization of acquired intangible assets	1,856	2,487	5,920	7,375
Income (loss) from operations	13,969	6,007	24,329	(70,043)
Other income (expense):
Interest income	179	31	1,517	96
Interest expense	(9,276)	(14,896)	(29,990)	(40,294)
Income (loss) before income taxes	4,872	(8,858)	(4,144)	(110,241)
Benefit from (provision for) income taxes	3,911	(3,230)	8,731	35,679
Equity in income of unconsolidated affiliate, net	1,807	1,351	4,328	2,730
Net income (loss)	10,590	(10,737)	8,915	(71,832)
Less: net income (loss) attributable to noncontrolling interests, net of tax	4,114	(333)	10,713	(1,694)
Net income (loss) attributable to Viasat, Inc.	$ 6,476	$ (10,404)	$ (1,798)	$ (70,138)
Basic net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.10	$ (0.17)	$ (0.03)	$ (1.17)
Diluted net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.10	$ (0.17)	$ (0.03)	$ (1.17)
Shares used in computing basic net income (loss) per share	61,813	60,152	61,405	59,698
Shares used in computing diluted net income (loss) per share	62,916	60,152	61,405	59,698
Comprehensive income (loss):
Net income (loss)	$ 10,590	$ (10,737)	$ 8,915	$ (71,832)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on hedging, net of tax	184	(50)	232	(338)
Foreign currency translation adjustments, net of tax	(2,371)	(1,279)	(6,091)	(8,180)
Other comprehensive loss, net of tax	(2,187)	(1,329)	(5,859)	(8,518)
Comprehensive income (loss)	8,403	(12,066)	3,056	(80,350)
Less: comprehensive income (loss) attributable to noncontrolling interests, net of tax	4,114	(333)	10,713	(1,694)
Comprehensive income (loss) attributable to Viasat, Inc.	4,289	(11,733)	(7,657)	(78,656)
Product [Member]
Revenues:
Total revenues	303,090	301,865	873,535	800,429
Operating expenses:
Cost of revenues	214,098	226,020	634,113	616,368
Service [Member]
Revenues:
Total revenues	285,134	252,829	843,982	710,608
Operating expenses:
Cost of revenues	$ 190,132	$ 176,686	$ 564,675	$ 523,348