INVESTMENT MANAGEMENT TRANSFER AGENT AND OTHER FEES - Additional Information (Detail) (USD $)	3 Months Ended
	Sep. 30, 2012 Funds	Sep. 30, 2011
Investment Management And Other Fees And Related Party Transactions [Line Items]
Number of equity funds with base advisory fee adjustment	9
Base advisory fee adjustment, description	is adjusted upwards or downwards by 0.25 percent when there is a performance difference of 5 percent or more between a fund's performance and that of its designated benchmark index over the prior rolling 12 months.
Increase (decrease) in base advisory fees realized	$ (346,914)	$ 265,133
Aggregate fees waived and expenses borne	850,042	803,229
Number of funds, company agreed to cap the expenses	13
Number of domestic global investors funds offering institutional class shares	3
Fees waived and or expenses reimbursed U.S. treasury securities cash fund and U.S. government securities savings fund to maintain minimum yield	300,635	405,150
Minimum yield waivers recoverable through 12/31/12	1,047,980
Minimum yield waivers recoverable through 12/31/13	1,562,956
Minimum yield waivers recoverable through 12/31/14	1,604,076
Minimum yield waivers recoverable through 12/31/15	958,858
Recorded advisory and performance fees	$ 90,562	$ 94,697