FAIR VALUE DISCLOSURES - Fair Value Measurements on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Jun. 30, 2014
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	$ 16,443	[1]	$ 17,817	[1]
Available-for-sale, fair value	4,303	[2]	6,196	[2]
Total Investments Measured at Fair Value on a Recurring Basis	20,700
Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	16,443		17,817
Available-for-sale, fair value	4,303		6,196
Total Investments Measured at Fair Value on a Recurring Basis	20,746		24,013
Offshore fund
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	465	[1]	998	[1]
Total Investments Measured at Fair Value on a Recurring Basis	465
Offshore fund | Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	465		998
Mutual funds - Fixed income
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	15,580	[1]	16,333	[1]
Available-for-sale, fair value	1,229	[3]	1,247	[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	15,580		16,333
Available-for-sale, fair value	1,229		1,247
Mutual funds - Domestic equity
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	398	[1]	459	[1]
Available-for-sale, fair value	468	[3]	550	[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	398		459
Available-for-sale, fair value	467		550
Other
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	0	[1]	27	[1]
Available-for-sale, fair value	168	[3]	240	[3]
Other | Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	0		27
Available-for-sale, fair value	167		240
Common stock - Domestic
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Available-for-sale, fair value	929	[3]	1,118	[3]
Common stock - Domestic | Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Available-for-sale, fair value	929		1,118
Common stock - International
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Available-for-sale, fair value	839	[3]	1,409	[3]
Common stock - International | Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Available-for-sale, fair value	840		1,409
Corporate debt
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Available-for-sale, fair value	670	[3]	1,632	[3]
Corporate debt | Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Available-for-sale, fair value	671		1,632
Quoted Prices (Level 1) | Recurring basis
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Trading securities, at fair value	15,978		16,819
Available-for-sale, fair value	3,631		4,853
Total Investments Measured at Fair Value on a Recurring Basis	19,609		21,672
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	15,580		16,333
Available-for-sale, fair value	1,229		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	398		459
Available-for-sale, fair value	467		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	0		27
Available-for-sale, fair value	167		240
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	929		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	839		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	0		292
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	465		998
Available-for-sale, fair value	98		1,093
Total Investments Measured at Fair Value on a Recurring Basis	563		2,091
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	465		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 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	1		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	97		1,090
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	574		250
Total Investments Measured at Fair Value on a Recurring Basis	574		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
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	$ 574		$ 250

[1] Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

[2] Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of March 31, 2015, are $(447) and $(295), respectively, and as of June 30, 2014, are $1,345 and $888, respectively.

[3] Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income as a separate component of shareholders’ equity until realized.