Intangible Assets - Estimated Future Amortization Expense for Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets, Gross	$ 268,167	$ 243,488
Finite-Lived Intangible Assets, Accumulated Amortization	62,043	65,584
2015	27,606
2016	26,390
2017	26,002
2018	24,020
2019	20,869
Thereafter	81,237
Net Carrying Amount	206,124	177,904
Customer Relationships
Finite-Lived Intangible Assets, Gross	167,460	171,940
Finite-Lived Intangible Assets, Accumulated Amortization	38,308	46,505
Net Carrying Amount	$ 129,152	$ 125,435
Acquired intangible assets, estimated useful lives	11 years 4 months 24 days	10 years 8 months 12 days
Completed Technology [Member]
Finite-Lived Intangible Assets, Gross	$ 97,592	$ 62,392
Finite-Lived Intangible Assets, Accumulated Amortization	22,246	13,101
Net Carrying Amount	$ 75,346	$ 49,291
Acquired intangible assets, estimated useful lives	9 years	8 years 1 month 6 days
Backlog [Member]
Finite-Lived Intangible Assets, Gross	$ 1,610	$ 7,650
Finite-Lived Intangible Assets, Accumulated Amortization	467	5,338
Net Carrying Amount	$ 1,143	$ 2,312
Acquired intangible assets, estimated useful lives	1 year 7 months 6 days	1 year 7 months 6 days