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Summary of Significant Accounting Policies - Additional Information (Detail) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Significant Accounting Policies [Line Items]
Common stock excluded from diluted earning per share	750	4,178
Multiple Delivery Revenue [Member]
Significant Accounting Policies [Line Items]
Percentage Of Revenue Recognized	29.00%	29.00%

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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