Benefit Plans (Details Textuals) $ in Thousands	3 Months Ended
	Sep. 30, 2015 USD ($)
Pension Plans, Defined Benefit [Member]
Benefit Plans (Textuals) [Abstract]
Contribution to benefit plan	$ 4,714
Expected contribution to benefit plans for remainder of fiscal year	590
Postretirement Health Coverage [Member]
Benefit Plans (Textuals) [Abstract]
Contribution to benefit plan	42
Expected contribution to benefit plans for remainder of fiscal year	$ 130