Significant Accounting Policies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended							0 Months Ended	12 Months Ended		1 Months Ended	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2014 Furniture and equipment [Member] Minimum [Member]	Jun. 30, 2014 Furniture and equipment [Member] Maximum [Member]	Jun. 30, 2014 Building and related improvements [Member] Minimum [Member]	Jun. 30, 2014 Building and related improvements [Member] Maximum [Member]	Jun. 01, 2014 Galileo Global Equity Advisors Inc [Member]	Jun. 30, 2014 Galileo [Member] Minimum [Member]	Jun. 30, 2014 Galileo [Member] Maximum [Member]	Jun. 30, 2014 Non-compete agreement [Member]	Mar. 31, 2014 Private and venture capital securities [Member]
Significant Of Accounting Policies [Line Items]
Purchase of additional equity shares									15.00%
Percentage of shares issued and outstanding of Galileo									65.00%
Other Investments transferred out of Level 3 assets													$ 385
Equity method investments	0	0	654
Depreciation Period					3 years	10 years	14 years	40 years		2 years	5 years
Estimated useful life	1 year 11 months											2 years
Net advertising expenditures		$ 615	$ 862	$ 1,182