Commitments and contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Loss Contingencies [Line Items]
Contractual obligation	$ 12,300
Financial commitment, term	5 years
Legal settlements and contingencies	$ 0	$ 700	$ 425
Location Based Services LLC
Loss Contingencies [Line Items]
Legal settlements and contingencies			$ 250