Accumulated Other Comprehensive (Loss) Income Accumulated Other Comprehensive (Loss) Income - Income Tax Allocated to Each Component of Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Accumulated Other Comprehensive (Loss) IncomeAccumulated Other Comprehensive (Loss) Income - Income Tax Allocated to Each Component of Other Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ (928)	$ (471)	$ (244)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(6)	0	94
Unrealized loss on derivatives designated and qualified as cash flow hedges	(922)	(471)	(150)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	4,508	1,557	(2,546)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(761)	0	983
Reclassification of unrealized loss (gain) on expired derivatives designated and qualified as cash flow hedges	3,747	1,557	(1,563)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	(8,043)	18,656	(84,266)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax	2,052	(3,097)	5,971
Unrecognized net pension and other postretirement benefit (loss) gain	(5,991)	15,559	(78,295)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax	7,307	8,326	7,251
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	(33)	(760)	(2,326)
Reclassification of net pension and other postretirement benefit loss	7,274	7,566	4,925
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	(1,593)	6,266	(52,699)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	103	(378)	4
Foreign currency translation adjustments	(1,490)	5,888	(52,695)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax			15,088
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Tax			0
Reclassification of foreign currency translation adjustment loss realized upon sale	0	0	15,088
Other Comprehensive Income (Loss), before Tax	1,251	34,334	(117,416)
Other Comprehensive Income (Loss), Tax	1,367	(4,235)	4,726
Other comprehensive income (loss), net of tax	$ 2,618	$ 30,099	$ (112,690)