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Investment - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014
Equity Method Investments And Joint Ventures [Abstract]
Equity method investment, ownership percentage	20.20%
Total carrying value of investment	$ 11,857		$ 11,600
Pro-rata share of earnings	$ 267	$ 257

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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