Repurchases Of Common Stock (Details) (USD $)			9 Months Ended	1 Months Ended	9 Months Ended	1 Months Ended	3 Months Ended
	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2013 Previous Maturity Date Of Stock Repurchase Program [Member]	Nov. 30, 2010 Common Stock Repurchase Program [Member]	Mar. 31, 2013 Common Stock Repurchase Program [Member]	Nov. 30, 2010 Additional Authorization Under Common Stock Repurchase Program [Member]	Mar. 31, 2013 Treasury Method [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 80,000,000		$ 40,000,000
Stock repurchase program, maturity date			Nov. 30, 2012		Nov. 30, 2014
Common stock repurchased, shares	4,676,082	4,353,200			4,352,083		322,882
Average price of common stock repurchased					$ 18.27		$ 38.76
Cost of common stock repurchased	87,386,000	74,871,000			79,500,000		12,500,000
Stock repurchase program, remaining amount					$ 40,500,000