Property and equipment (Tables)

12 Months Ended

Mar. 31, 2020

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Depreciation on other assets is calculated using the straight-line method to reduce the cost of the asset to its residual value over its estimated useful life, as follows:

Equipment	1 - 8 years
Motor vehicles	3 - 7 years
Furniture, fixtures and equipment	1 - 10 years
Computer equipment	1 - 7 years
In-vehicle devices installed	1 - 6.5 years

The cost and accumulated depreciation of owned equipment are as follows (in thousands):

	As of March 31,
	2019		2020
Owned equipment
Equipment, vehicles and other	$	7,043	$	6,114
In-vehicle devices	50,415		52,824
Less: accumulated depreciation and impairments	(28,652)		(35,397)
Owned equipment, net	$	28,806	$	23,541

Schedule of Right-of-use Property and Equipment

The cost and accumulated depreciation of right-of-use property and equipment are as follows (in thousands):

	As of March 31,
	2019		2020
Right-of-use assets
Property	$	3,782	$	7,724
Equipment, vehicles and other	204		250
Less: accumulated depreciation	(1,078)		(1,496)
Right of use property and equipment, net	$	2,908	$	6,478