Segment Information - Summary of Reportable Segments' Profits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Summary of reportable segments' profits
Segment revenue	$ 124,902	$ 119,933	$ 247,683	$ 239,983
Income from operations	54,465	56,065	107,778	110,796
Operating segments
Summary of reportable segments' profits
Segment revenue	124,902	119,933	247,683	239,983
Segment expenses	(56,259)	(52,005)	(112,051)	(104,167)
Income from operations	68,643	67,928	135,632	135,816
Subscription and software | Operating segments
Summary of reportable segments' profits
Segment revenue	117,658	112,916	233,414	226,360
Segment expenses	(49,656)	(45,602)	(98,499)	(91,328)
Income from operations	68,002	67,314	134,915	135,032
Services | Operating segments
Summary of reportable segments' profits
Segment revenue	7,244	7,017	14,269	13,623
Segment expenses	(6,603)	(6,403)	(13,552)	(12,839)
Income from operations	$ 641	$ 614	$ 717	$ 784