Goodwill and Other Intangible Assets - Schedule of Intangible Assets Subject to Amortization and for Intangible Assets Not Subject to Amortization (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 479,732	$ 471,062
Accumulated Amortization	(324,401)	(302,713)
Net Carrying Value	155,331	168,349
Goodwill	205,206	206,101
Total intangible assets	360,537	374,450
Customer related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	218,650	219,893
Accumulated Amortization	(153,476)	(145,144)
Net Carrying Value	$ 65,174	$ 74,749
Weighted Average Remaining Life	7 years 8 months 12 days	8 years 6 months
Core technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 133,038	$ 130,226
Accumulated Amortization	(95,444)	(90,017)
Net Carrying Value	$ 37,594	$ 40,209
Weighted Average Remaining Life	7 years	7 years 4 months 24 days
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 22,025	$ 25,712
Accumulated Amortization	(19,656)	(19,030)
Net Carrying Value	$ 2,369	$ 6,682
Weighted Average Remaining Life	4 years 7 months 6 days	5 years
Capitalized Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 25,410	$ 23,213
Accumulated Amortization	(12,960)	(10,006)
Net Carrying Value	$ 12,450	$ 13,207
Weighted Average Remaining Life	2 years 3 months 18 days	3 years
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 80,609	$ 72,018
Accumulated Amortization	(42,865)	(38,516)
Net Carrying Value	$ 37,744	$ 33,502
Weighted Average Remaining Life	3 years 9 months 18 days	4 years 2 months 12 days