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Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Jun. 30, 2013
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets $ 253,529 $ 231,060
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 287 439
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 2,791 287
Cash and Cash Equivalents [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 3,078 726
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 16,754 18,824
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 90,744 88,306
Equity Securities [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 107,498 107,130
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 13,334 13,018
US Government Agencies Debt Securities [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 13,334 13,018
Corporate Bonds and Other Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 7,297 775
Corporate Bonds and Other Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 110,834 101,215
Corporate Bonds and Other Fixed Income Securities [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 118,131 101,990
Other Debt Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 11,488 8,196
Other Debt Obligations [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 11,488 8,196
Fair Value, Inputs, Level 1 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets 24,338 20,038
Fair Value, Inputs, Level 2 [Member]
    
Note 17. Employee Benefit Plans (Details) - Fair Values of Pension Plans [Line Items]    
Fair value of plan assets $ 229,191 $ 211,022