Capital Stock (Details) (USD $)	12 Months Ended
	Jun. 30, 2014 classesofstock	Jun. 30, 2013	Jun. 30, 2012	May 31, 2014	Oct. 31, 2011
Class of Stock [Line Items]
Number of classes of common stock outstanding	2
Authorized dollar amount of shares to be repurchased				$ 100,000,000	$ 100,000,000
Repurchases: Number of shares	1,640,000	1,477,000	976,000
Repurchases: Cost at market value	78,226,000	54,734,000	26,881,000
Remaining authorized repurchase amount	108,200,000
Shares tendered for the exercise of price of options (in shares)	1,100,000
Cost of shares tendered for the exercise price of options	$ 54,100,000
Class B Stock $1 par value [Member]
Class of Stock [Line Items]
Common stock voting rights	10 votes per share
Common Stock $1 par value [Member]
Class of Stock [Line Items]
Common stock voting rights	one vote per share