Repurchases Of Common Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended	110 Months Ended
	Dec. 31, 2014	Dec. 31, 2014
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount	$ 120
Stock repurchase program, expiration date	Nov. 30, 2016
Common stock repurchased, shares		4,517,309
Average price of common stock repurchased		$ 18.88
Cost of common stock repurchased		85.3
Stock repurchase program, remaining amount	$ 34.7
Previous Maturity Date Of Stock Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, expiration date	Nov. 30, 2014