Summary Of Significant Accounting Policies (Tables)

9 Months Ended

Mar. 31, 2019

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,
	2019		2018
Construction in progress in Accounts Payable	$	3,131	$	1,279

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,
	2019			2018			2019			2018
Net income	$	30,604		$	27,621		$	117,539		$	102,927
Net income available to participating securities	(52		)	(58		)	(212		)	(206		)
Net income available to common shareholders	$	30,552		$	27,563		$	117,327		$	102,721
Weighted average common shares outstanding – basic	27,448			27,405			27,436			27,399
Incremental share effect from:
Nonparticipating restricted stock	1			2			3			3
Stock-settled stock appreciation rights	100			51			104			54
Weighted average common shares outstanding – diluted	27,549			27,458			27,543			27,456
Net income per common share – basic	$	1.11		$	1.01		$	4.28		$	3.75
Net income per common share – diluted	$	1.11		$	1.00		$	4.26		$	3.74

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,
	2019			2018			2019			2018
Accumulated other comprehensive loss at beginning of period	$	(8,172	)	$	(8,825	)	$	(8,259	)	$	(8,936	)
Defined Benefit Pension Plan Items:
Amortization of unrecognized net loss	111			143			335			429
Postretirement Benefit Plan Items:
Amortization of unrecognized net gain	(9		)	(9		)	(28		)	(27		)
Amortization of prior service credit	(46		)	(45		)	(137		)	(136		)
Total other comprehensive income, before tax	56			89			170			266
Total tax expense	(13		)	(27		)	(40		)	(93		)
Other comprehensive income, net of tax	43			62			130			173
Tax Cuts and Jobs Act of 2017, Reclassification from accumulated other comprehensive loss to retained earnings	—			(1,889		)	—			(1,889		)
Accumulated other comprehensive loss at end of period	$	(8,129	)	$	(10,652	)	$	(8,129	)	$	(10,652	)