Earnings Per Share (Tables)

6 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Reconciliation of basic average common shares outstanding to diluted average common shares outstanding

	Three Months Ended December 31,				Six Months Ended December 31,
	2011		2010		2011		2010
Net income	$	64,016	$	78,283	$	144,533	$	153,387
Basic average common shares outstanding		175,830		174,664		175,656		174,510
Effect of dilutive stock options		1,155		892		1,122		819
Diluted weighted average common shares outstanding		176,985		175,556		176,778		175,329
Earnings per share:
Basic	$	0.36	$	0.45	$	0.82	$	0.88
Diluted	$	0.36	$	0.45	$	0.82	$	0.88