Other assets and liabilities, current and non-current (Accrued Expenses and Other Current Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Other Assets And Liabilities [Abstract]
Deferred warranty revenue	$ 16,835	$ 20,483
Accrued compensation	17,703	21,762
Other taxes payable	23,719	18,573
Accrued marketing expense	4,247	4,457
Brazilian pre-acquisition contingencies	761	1,385
Accrued freight	4,071	3,848
Other accrued liabilities	24,071	20,365
Accrued expensed and other current liabilities	$ 91,407	$ 90,873