Equity - Reclassifications out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from accumulated other comprehensive (loss), current period	$ (41,169)	$ (53,410)
Tax benefit	14,434	19,248
Net of tax	(26,735)	(34,162)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from accumulated other comprehensive (loss), current period	(2,133)	(1,750)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from accumulated other comprehensive (loss), current period	$ (39,036)	$ (51,660)