Acquisitions - Narrative (Details) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
	Oct. 26, 2016	Aug. 31, 2016	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2016
Acquisition
Net foreign currency transaction and remeasurement losses				$ (600)	$ 100	$ 800
Purchase price				36,171	8,000	$ 0
Goodwill			$ 23,438	$ 51,248	23,438
Mtelligence Corporation [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 37,400
Acquisition
Purchase price	31,900
Future contingent consideration payment	5,500
Weighted average discount rate (as a percent)				19.00%
Effective tax rate (as a percent)				34.00%
Business Combination, Contingent Consideration, Liability	$ 5,300
Goodwill				$ 25,888
Acquisition of Technology and Trademarks [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 6,000
Acquisition
Purchase price		5,400
Future contingent consideration payment		$ 600
Finite-lived intangible asset, useful life		6 years
Goodwill							$ 2,000
Fidelis
Acquisition
Purchase price			8,000
Future contingent consideration payment			$ 2,000		$ 2,000
Goodwill				$ 6,722
Developed technology | Mtelligence Corporation [Member]
Acquisition
Finite-lived intangible asset, useful life				12 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 11,385
Developed technology | Acquisition of Technology and Trademarks [Member]
Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles							$ 4,000
Developed technology | Fidelis
Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				1,272
In process research & development | Fidelis
Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 3,097
Customer relationships | Mtelligence Corporation [Member]
Acquisition
Finite-lived intangible asset, useful life				6 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 679
Customer relationships | Fidelis
Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 753
Noncompete Agreements [Member] | Mtelligence Corporation [Member]
Acquisition
Finite-lived intangible asset, useful life				3 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				$ 553