Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Oct. 26, 2016	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross			$ 36,171	$ 8,000	$ 0
Goodwill		$ 23,438	51,248	23,438
Mtelligence Corporation [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 31,900
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 5,500
Tangible assets acquired, net			779
Goodwill			25,888
Deferred tax liabilities, net			(2,099)
Total assets acquired			37,185
Mtelligence Corporation [Member] | Developed technology
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			11,385
Mtelligence Corporation [Member] | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			679
Mtelligence Corporation [Member] | Noncompete Agreements [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			553
Fidelis
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		8,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 2,000		$ 2,000
Tangible assets acquired, net			49
Goodwill			6,722
Deferred tax liabilities, net			(1,893)
Total assets acquired			10,000
Fidelis | Developed technology
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			1,272
Fidelis | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			753
Fidelis | In process research & development
Business Acquisition [Line Items]
Finite-lived intangible assets acquired			$ 3,097