Summary Of Significant Accounting Policies (Tables)

9 Months Ended

Mar. 31, 2013

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Construction In Progress In Accounts Payable

	March 31,
	2013		2012
Construction in progress in accounts payable	$	2,704	$	244

Schedule Of Basic And Diluted Earnings Per Share Calculations

	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2013		2012		2013		2012
Net income	$	21,833	$	18,222	$	83,772	$	69,853
Net income available to participating securities		(29)		(36)		(311)		(125)
Net income available to common shareholders	$	21,804	$	18,186	$	83,461	$	69,728
Weighted average common shares outstanding - basic		27,259		27,216		27,244		27,237
Incremental share effect from:
Nonparticipating restricted stock		2		2		3		4
Stock-settled stock appreciation rights		26		33		28		27
Weighted average common shares outstanding - diluted		27,287		27,251		27,275		27,268
Net income per common share - basic and diluted	$	0.80	$	0.67	$	3.06	$	2.56