Note 12. Stock Compensation Plan - Stock Compensation Awards (Details) (USD $)	3 Months Ended
	Sep. 30, 2013
Annual Performance Shares | Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	229,500
Stock Compensation, Grant Date Fair Value	$ 11.05
Long-Term Performance Shares | Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	405,500
Stock Compensation, Grant Date Fair Value	$ 11.05
Unrestricted Shares Director Compensation | Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	15,017
Stock Compensation, Grant Date Fair Value	$ 10.09
Unrestricted Shares | Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	1,000
Stock Compensation, Grant Date Fair Value	$ 10.01