Acquisitions - Summary of Allocation of Purchase Price for Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			3 Months Ended	9 Months Ended
	Jul. 01, 2020	Jan. 31, 2020	Nov. 30, 2020	Nov. 30, 2020	Feb. 29, 2020
Business Acquisition [Line Items]
Goodwill, measurement period adjustments				$ 638
Goodwill			$ 58,928	58,928	$ 55,000
Total purchase price		$ 16,610
Directed LLC and Directed Electronics Canada Inc [Member]
Business Acquisition [Line Items]
Inventory	$ 7,054
Accounts receivable	5,173
Other current assets	160
Property and equipment	2,815
Operating lease, right of use asset	1,771
Goodwill	3,290
Total assets acquired	28,393
Accounts payable	8,144
Accrued expenses	1,406
Contract liabilities	4,872
Warranty accrual	1,200
Operating lease liability	1,771
Total	17,393
Total purchase price	11,000
Accounts receivable, measurement period adjustments	67
Goodwill, measurement period adjustments	55		55	55
Total assets acquired, measurement period adjustments	22
Accrued expenses, right of use asset, measurement period adjustments	11
Contract liabilities, measurement period adjustments	11
Liabilities assumed, measurement period adjustments	22
Inventory	7,054
Accounts receivable	5,240
Other current assets	160
Property and equipment	2,815
Operating lease, right of use asset	1,771
Goodwill	3,345
Total assets acquired	28,415
Accounts payable	8,144
Accrued expenses	1,417
Contract liabilities	4,883
Warranty accrual	1,200
Operating lease liability	1,771
Total	17,415
Total purchase price	11,000
Directed LLC and Directed Electronics Canada Inc [Member] | Trademarks [Member]
Business Acquisition [Line Items]
Intangible assets other than goodwill	4,500
Intangible assets other than goodwill	4,500
Directed LLC and Directed Electronics Canada Inc [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets other than goodwill	2,600
Intangible assets other than goodwill, measurement period adjustments	(100)
Intangible assets other than goodwill	2,500
Directed LLC and Directed Electronics Canada Inc [Member] | Patented Technology [Member]
Business Acquisition [Line Items]
Intangible assets other than goodwill	1,030
Intangible assets other than goodwill	$ 1,030
VSHC [Member]
Business Acquisition [Line Items]
Inventory		6,982
Accounts receivable		3,415
Other current assets		145
Property and equipment		714
Operating lease, right of use asset		483
Goodwill		215
Other non-current assets		3
Total assets acquired		18,257
Accounts payable		757
Accrued expenses		219
Lease liabilities		483
Warranty accrual		188
Total		1,647
Total purchase price		16,610
Inventory, measurement period adjustments		(489)
Goodwill, measurement period adjustments		583	$ 583	$ 583
Total assets acquired, measurement period adjustments		94
Accrued expenses, right of use asset, measurement period adjustments		94
Liabilities assumed, measurement period adjustments		94
Inventory		6,493
Accounts receivable		3,415
Other current assets		145
Property and equipment		714
Operating lease, right of use asset		483
Goodwill		798
Other non-current assets		3
Total assets acquired		18,351
Accounts payable		757
Accrued expenses		313
Lease liabilities		483
Warranty accrual		188
Total		1,741
Total purchase price		16,610
VSHC [Member] | Trademarks [Member]
Business Acquisition [Line Items]
Intangible assets other than goodwill		560
Intangible assets other than goodwill		560
VSHC [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets other than goodwill		5,460
Intangible assets other than goodwill		5,460
VSHC [Member] | Patented Technology [Member]
Business Acquisition [Line Items]
Intangible assets other than goodwill		280
Intangible assets other than goodwill		$ 280