Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Total revenues	$ 438,869	$ 380,044
Operating expenses:
Selling, general and administrative	112,642	89,173
Independent research and development	33,373	45,065
Amortization of acquired intangible assets	2,453	3,260
Loss from operations	(54,479)	(17,950)
Other income (expense):
Interest income	36	93
Interest expense	(11,324)	(56)
Loss before income taxes	(65,767)	(17,913)
Benefit from income taxes	29,205	9,180
Equity in income (loss) of unconsolidated affiliate, net	1,065	(513)
Net loss	(35,497)	(9,246)
Less: net loss attributable to noncontrolling interests, net of tax	(1,487)	(207)
Net loss attributable to Viasat, Inc.	$ (34,010)	$ (9,039)
Basic net loss per share attributable to Viasat, Inc. common stockholders	$ (0.57)	$ (0.16)
Diluted net loss per share attributable to Viasat, Inc. common stockholders	$ (0.57)	$ (0.16)
Shares used in computing basic net loss per share	59,208	57,842
Shares used in computing diluted net loss per share	59,208	57,842
Comprehensive income (loss):
Net loss	$ (35,497)	$ (9,246)
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on hedging, net of tax	(326)	92
Foreign currency translation adjustments, net of tax	203	3,525
Other comprehensive (loss) income, net of tax	(123)	3,617
Comprehensive loss	(35,620)	(5,629)
Less: comprehensive loss attributable to noncontrolling interests, net of tax	(1,487)	(207)
Comprehensive loss attributable to Viasat, Inc.	(34,133)	(5,422)
Product [Member]
Revenues:
Total revenues	218,129	166,118
Operating expenses:
Cost of revenues	173,448	122,645
Service [Member]
Revenues:
Total revenues	220,740	213,926
Operating expenses:
Cost of revenues	$ 171,432	$ 137,851