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FAIR VALUE DISCLOSURES - Fair Value Measurements on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Jun. 30, 2014
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value $ 17,586 $ 17,817
Available-for-sale, fair value 5,552 6,196
Total Investments Measured at Fair Value on a Recurring Basis 23,100  
Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 17,586 17,817
Available-for-sale, fair value 5,552 6,196
Total Investments Measured at Fair Value on a Recurring Basis 23,138 24,013
Common stock - Domestic
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,098 1,118
Common stock - Domestic | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,098 1,118
Common stock - International
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,027 1,409
Common stock - International | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,027 1,409
Corporate debt
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,419 1,632
Corporate debt | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,419 1,632
Offshore fund
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 794 998
Offshore fund | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 794 998
Mutual funds - Fixed income
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 16,318 16,333
Available-for-sale, fair value 1,231 1,247
Mutual funds - Fixed income | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 16,319 16,333
Available-for-sale, fair value 1,231 1,247
Mutual funds - Domestic equity
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 450 459
Available-for-sale, fair value 548 550
Mutual funds - Domestic equity | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 450 459
Available-for-sale, fair value 548 550
Other
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 24 27
Available-for-sale, fair value 229 240
Other | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 23 27
Available-for-sale, fair value 229 240
Quoted Prices (Level 1) | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 16,792 16,819
Available-for-sale, fair value 4,322 4,853
Total Investments Measured at Fair Value on a Recurring Basis 21,114 21,672
Quoted Prices (Level 1) | Common stock - Domestic | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,098 1,118
Quoted Prices (Level 1) | Common stock - International | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 1,024 1,406
Quoted Prices (Level 1) | Corporate debt | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 192 292
Quoted Prices (Level 1) | Offshore fund | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Quoted Prices (Level 1) | Mutual funds - Fixed income | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 16,319 16,333
Available-for-sale, fair value 1,231 1,247
Quoted Prices (Level 1) | Mutual funds - Domestic equity | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 450 459
Available-for-sale, fair value 548 550
Quoted Prices (Level 1) | Other | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 23 27
Available-for-sale, fair value 229 240
Significant Other Inputs (Level 2) | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 794 998
Available-for-sale, fair value 980 1,093
Total Investments Measured at Fair Value on a Recurring Basis 1,774 2,091
Significant Other Inputs (Level 2) | Common stock - Domestic | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 0 0
Significant Other Inputs (Level 2) | Common stock - International | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 3 3
Significant Other Inputs (Level 2) | Corporate debt | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 977 1,090
Significant Other Inputs (Level 2) | Offshore fund | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 794 998
Significant Other Inputs (Level 2) | Mutual funds - Fixed income | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value 0 0
Significant Other Inputs (Level 2) | Mutual funds - Domestic equity | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value 0 0
Significant Other Inputs (Level 2) | Other | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value 0 0
Significant Unobservable Inputs (Level 3) | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value 250 250
Total Investments Measured at Fair Value on a Recurring Basis 250 250
Significant Unobservable Inputs (Level 3) | Common stock - Domestic | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 0 0
Significant Unobservable Inputs (Level 3) | Common stock - International | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 0 0
Significant Unobservable Inputs (Level 3) | Corporate debt | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Available-for-sale, fair value 250 250
Significant Unobservable Inputs (Level 3) | Offshore fund | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Significant Unobservable Inputs (Level 3) | Mutual funds - Fixed income | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value 0 0
Significant Unobservable Inputs (Level 3) | Mutual funds - Domestic equity | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value 0 0
Significant Unobservable Inputs (Level 3) | Other | Recurring basis
    
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Trading securities, at fair value 0 0
Available-for-sale, fair value $ 0 $ 0