Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Total revenues	$ 575,559	$ 588,224	$ 1,660,325	$ 1,717,517
Operating expenses:
Selling, general and administrative	132,394	136,005	378,884	388,528
Independent research and development	28,803	32,164	83,970	99,952
Amortization of acquired intangible assets	1,313	1,856	4,171	5,920
Income from operations	21,760	13,969	29,129	24,329
Other income (expense):
Interest income	114	179	474	1,517
Interest expense	(7,880)	(9,276)	(27,194)	(29,990)
Income (loss) before income taxes	13,994	4,872	2,409	(4,144)
(Provision for) benefit from income taxes	(7,008)	3,911	(573)	8,731
Equity in income of unconsolidated affiliate, net	774	1,807	788	4,328
Net income	7,760	10,590	2,624	8,915
Less: net income attributable to noncontrolling interest, net of tax	1,000	4,114	6,290	10,713
Net income (loss) attributable to Viasat, Inc.	$ 6,760	$ 6,476	$ (3,666)	$ (1,798)
Basic net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.10	$ 0.10	$ (0.06)	$ (0.03)
Diluted net income (loss) per share attributable to Viasat, Inc. common stockholders	$ 0.10	$ 0.10	$ (0.06)	$ (0.03)
Shares used in computing basic net income (loss) per share	67,995	61,813	65,704	61,405
Shares used in computing diluted net income (loss) per share	68,668	62,916	65,704	61,405
Comprehensive income (loss):
Net income	$ 7,760	$ 10,590	$ 2,624	$ 8,915
Other comprehensive income (loss), net of tax:
Unrealized gain on hedging, net of tax		184		232
Foreign currency translation adjustments, net of tax	9,047	(2,371)	12,662	(6,091)
Other comprehensive income (loss), net of tax	9,047	(2,187)	12,662	(5,859)
Comprehensive income	16,807	8,403	15,286	3,056
Less: comprehensive income attributable to noncontrolling interest, net of tax	1,000	4,114	6,290	10,713
Comprehensive income (loss) attributable to Viasat, Inc.	15,807	4,289	8,996	(7,657)
Product [Member]
Revenues:
Total revenues	266,514	303,090	773,128	873,535
Operating expenses:
Cost of revenues	196,895	214,098	576,677	634,113
Service [Member]
Revenues:
Total revenues	309,045	285,134	887,197	843,982
Operating expenses:
Cost of revenues	$ 194,394	$ 190,132	$ 587,494	$ 564,675