Summary Of Significant Accounting Policies (Tables)

9 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Schedule Of Construction In Progress In Accounts Payable

Purchases of property, plant and equipment included in Accounts Payable and excluded from the property additions and the change in accounts payable in the Condensed Consolidated Statements of Cash Flows were as follows:

	March 31,
	2018		2017
Construction in progress in Accounts Payable	$	1,279	$	1,887

Schedule Of Basic And Diluted Net Income Per Common Share Calculations

Basic and diluted net income per common share were calculated as follows:

	Three Months Ended   March 31,						Nine Months Ended   March 31,
	2018			2017			2018			2017
Net income	$	27,621		$	14,471		$	102,927		$	86,827
Net income available to participating securities	(58		)	(23		)	(206		)	(149		)
Net income available to common shareholders	$	27,563		$	14,448		$	102,721		$	86,678
Weighted average common shares outstanding – basic	27,405			27,379			27,399			27,369
Incremental share effect from:
Nonparticipating restricted stock	2			1			3			3
Stock-settled stock appreciation rights	51			62			54			66
Weighted average common shares outstanding – diluted	27,458			27,442			27,456			27,438
Net income per common share – basic	$	1.01		$	0.53		$	3.75		$	3.17
Net income per common share – diluted	$	1.00		$	0.53		$	3.74		$	3.16

Schedule Of Amounts Reclassified Out Of Accumulated Other Comprehensive Loss

The following table presents the amounts reclassified out of accumulated other comprehensive loss by component:

	Three Months Ended   March 31,						Nine Months Ended   March 31,
	2018			2017			2018			2017
Accumulated other comprehensive loss at beginning of period	$	(8,825	)	$	(11,194	)	$	(8,936	)	$	(11,350	)
Defined Benefit Pension Plan Items:
Amortization of unrecognized net loss	143			179			429			536
Postretirement Benefit Plan Items:
Amortization of unrecognized net gain	(9		)	(9		)	(27		)	(28		)
Amortization of prior service credit	(45		)	(46		)	(136		)	(136		)
Total other comprehensive income, before tax	89			124			266			372
Total tax expense	(27		)	(46		)	(93		)	(138		)
Other comprehensive income, net of tax	62			78			173			234
Tax Cuts and Jobs Act of 2017, Reclassification from accumulated other comprehensive loss to retained earnings (1)	(1,889		)	—			(1,889		)	—
Accumulated other comprehensive loss at end of period	$	(10,652	)	$	(11,116	)	$	(10,652	)	$	(11,116	)

(1) See further discussion of this reclassification under the caption “Recently Adopted Accounting Standards” within Note 1.