Note 17. Employee Benefit Plans (Details) (USD $)	12 Months Ended		12 Months Ended			12 Months Ended					3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 United States Pension Plan of US Entity [Member]	Jun. 30, 2014 Retirement Savings Plans [Member] Salaried Employees [Member]	Jun. 30, 2014 Retirement Savings Plans [Member] Hourly Employees [Member]	Jun. 30, 2014 Retirement Savings Plans [Member]	Jun. 30, 2013 Retirement Savings Plans [Member]	Jun. 30, 2012 Retirement Savings Plans [Member]	Jun. 30, 2014 Postretirement Health Coverage [Member]	Jun. 30, 2013 Postretirement Health Coverage [Member]	Mar. 31, 2013 Postretirement Life Insurance [Member]
Note 17. Employee Benefit Plans (Details) [Line Items]
Increase Decrease in Non-cash Pension Plan Expense	$ (2,600,000)
Defined Benefit Plan, Accumulated Benefit Obligation	283,700,000	264,900,000
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year	4,800,000
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	100,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate			4.50%						4.50%	5.10%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets			7.25%
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months			16,600,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Two			16,600,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Three			16,800,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Four			16,900,000
Defined Benefit Plan, Expected Future Benefit Payments, Year Five			17,100,000
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter			87,000,000
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	1,700,000
Defined Contribution Plans, Number of Plans				1	1	2
Defined Contribution Plan, Cost Recognized						4,000,000	4,100,000	4,100,000
Defined Contribution Plan, Company Stock Held in Plan				120,000
Defined Contribution Plan Company Stock Percentage of Plan Assets				10.00%
Other Postretirement Defined Benefit Plan, Liabilities									200,000	200,000
Pension Contributions									100,000	100,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments											$ 2,300,000