Income Taxes - Schedule of Principal Items Comprising Deferred Income Taxes (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Deferred income tax assets
Inventory capitalization	$ 19,372	$ 5,687
Interest rate swap	9,847	0
Non-deductible accruals	9,325	1,251
Accrued employee benefits	11,095	9,797
Net-operating loss and credit carryforwards	182,625	54,192
Share-based compensation expense	8,110	7,192
Other	9,736	5,488
Right of use asset	31,573
Valuation allowances	(54,559)	(16,558)
Total deferred income tax assets	227,124	67,049
Deferred income tax liabilities
Tax over book accumulated depreciation	(25,926)	(28,184)
Intangible assets	(160,577)	(28,202)
Tax on unremitted earnings	(21,785)	(11,662)
Convertible debt	(6,006)	(8,662)
Lease liability	29,768
Other	(5,676)	(5,728)
Total deferred income tax liabilities	(249,738)	(82,438)
Net deferred income taxes	$ (22,614)	$ (15,389)