Benefit Plans Benefit Plans 1 (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Amounts recognized in the consolidated balance sheets:
Post-employment benefits	$ 16,715	$ 21,322
Pension Plan [Member]
Amounts recognized in the consolidated balance sheets:
Other current liabilities	2,814	741
Post-employment benefits	15,067	19,127
Net amount recognized	17,881	19,868
Amounts recognized in accumulated other comprehensive loss:
Net actuarial (loss) gain	(5,798)	(8,234)
Prior service cost	(35)	(121)
Total amounts recognized in accumulated other comprehensive loss	(5,833)	(8,355)
Postretirement Health Coverage [Member]
Amounts recognized in the consolidated balance sheets:
Other current liabilities	220	220
Post-employment benefits	1,464	2,015
Net amount recognized	1,684	2,235
Amounts recognized in accumulated other comprehensive loss:
Net actuarial (loss) gain	1,167	1,119
Prior service cost	922	948
Total amounts recognized in accumulated other comprehensive loss	$ 2,089	$ 2,067