Shareholders' Equity (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Beginning Balance	$ (99,886)
Other comprehensive income (loss), Unrealized (Loss) Gain on securities available for sale, Net of Tax	0	$ 0	$ 20
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(50)	(226)	(45)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	(3,504)	(183)	0
Net current-period other comprehensive income (loss), Foreign currency translation adjustment	(18,764)	1,644	(8,549)
Net current-period other comprehensive income (loss), Cash flow hedge	(12,572)	(10,887)	0
Net current-period other comprehensive loss	(29,544)	(9,663)	(8,521)
Ending Balance	(129,430)	(99,886)
Adjustments for New Accounting Principle, Early Adoption [Member]
Reclassification of certain income tax effects to retained earnings, net amount	0	0	(471)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification of certain income tax effects to retained earnings, net amount	3,454	(43)	(45)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(50)	(226)	(45)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Adjustments for New Accounting Principle, Early Adoption [Member]
Reclassification of certain income tax effects to retained earnings, net amount			(502)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Beginning Balance	(86,330)	(87,974)	(79,447)
Other comprehensive income (loss), foreign currency translation adjustment, net of tax	(18,764)	1,644	(8,549)
Reclassification of certain income tax effects to retained earnings, net amount	0	0	0
Net current-period other comprehensive income (loss), Foreign currency translation adjustment	(18,764)	1,644	(8,527)
Net current-period other comprehensive income (loss), Unrealized (loss) gain on securities available for sale		0
Ending Balance	(105,094)	(86,330)	(87,974)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Adjustments for New Accounting Principle, Early Adoption [Member]
Reclassification of certain income tax effects to retained earnings, net amount			22
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Beginning Balance	0	50	21
Other comprehensive income (loss), Unrealized (Loss) Gain on securities available for sale, Net of Tax	0	0	20
Reclassification of certain income tax effects to retained earnings, net amount	0	0	0
Net current-period other comprehensive income (loss), Unrealized (loss) gain on securities available for sale	0	(50)	29
Ending Balance	0	0	50
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Adjustments for New Accounting Principle, Early Adoption [Member]
Reclassification of certain income tax effects to retained earnings, net amount			9
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Beginning Balance	(2,852)	(2,299)	(2,276)
Other Comprehensive Income (Loss), Postemployment Benefits	(1,662)	(327)	524
Net current-period other comprehensive income (loss), Unrealized (loss) gain on securities available for sale		0
Net current-period other comprehensive income (loss), Post-employment benefits	(1,712)	(553)	(23)
Ending Balance	(4,564)	(2,852)	(2,299)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Beginning Balance	(10,704)	0	0
Other Comprehensive Income (Loss), Cash Flow Hedge	(12,572)	(10,887)	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax	3,504	183	0
Net current-period other comprehensive income (loss), Unrealized (loss) gain on securities available for sale		0
Net current-period other comprehensive income (loss), Cash flow hedge	(9,068)	(10,704)	0
Ending Balance	(19,772)	(10,704)	0
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] | Adjustments for New Accounting Principle, Early Adoption [Member]
Reclassification of certain income tax effects to retained earnings, net amount			0
AOCI Attributable to Parent [Member]
Beginning Balance	(99,886)	(90,223)	(81,702)
Other Comprehensive Income (Loss), Total Accumulated Other Comprehensive (Loss) Income	(32,998)	(9,570)	(8,005)
Reclassification of certain income tax effects to retained earnings, net amount			(471)
Net current-period other comprehensive income (loss), Unrealized (loss) gain on securities available for sale		(50)
Net current-period other comprehensive loss	(29,544)	(9,663)	(8,521)
Ending Balance	$ (129,430)	$ (99,886)	$ (90,223)