Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Significant Accounting Policies [Line Items]
Income tax (benefit) expense	$ 1,779	$ 1,433	$ 520	$ 1,801
Cost of revenues	$ 50,625	$ 30,678	$ 98,830	$ 60,785
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	9	2	6	25
Multiple Delivery Revenue [Member]
Significant Accounting Policies [Line Items]
Percentage Of Revenue Recognized	23.00%	36.00%	29.00%	42.00%
Restatement Adjustment
Significant Accounting Policies [Line Items]
Income tax (benefit) expense		$ (247)		$ (1,143)
Cost of revenues		$ (1,161)		$ (1,934)