Income Taxes - Schedule of Principal Items Comprising Deferred Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Deferred income tax assets
Inventory capitalization	$ 20,753	$ 19,372
Interest rate swap	6,347	9,847
Non-deductible accruals	7,437	9,325
Accrued employee benefits	14,025	11,095
Net-operating loss and credit carryforwards	163,717	182,625
Share-based compensation expense	8,400	8,110
Other	8,956	9,736
Right of use asset	33,341	31,573
Valuation allowances	(53,765)	(54,559)
Total deferred income tax assets	209,211	227,124
Deferred income tax liabilities
Tax over book accumulated depreciation	(32,692)	(25,926)
Intangible assets	(153,582)	(160,577)
Tax on unremitted earnings	(21,569)	(21,785)
Convertible debt	(3,321)	(6,006)
Lease liability	(32,053)	(29,768)
Other	(6,458)	(5,676)
Total deferred income tax liabilities	(249,675)	(249,738)
Net deferred income taxes	$ (40,464)	$ (22,614)