Intangible Assets - Estimated Future Amortization Expense for Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Finite-Lived Intangible Assets, Gross	$ 168,694	$ 144,296
Finite-Lived Intangible Assets, Accumulated Amortization	39,657	27,623
2015	21,722
2016	17,542
2017	14,767
2018	14,165
2019	14,165
Thereafter	46,676
Net Carrying Amount	129,037	116,673
Carve-Out Business
Finite-Lived Intangible Assets, Gross	102,800
Finite-Lived Intangible Assets, Accumulated Amortization	13,829
Net Carrying Amount	88,971
Customer Relationships [Member]
Finite-Lived Intangible Assets, Gross	117,630	105,370
Finite-Lived Intangible Assets, Accumulated Amortization	31,533	23,824
Net Carrying Amount	$ 86,097	$ 81,546
Weighted Average Useful Life	10 years	9 years 10 months 18 days
Customer Relationships [Member] | Carve-Out Business
Finite-Lived Intangible Assets, Gross	$ 70,900
Finite-Lived Intangible Assets, Accumulated Amortization	7,856
Net Carrying Amount	$ 63,044
Weighted Average Useful Life	11 years 6 months
Completed Technology [Member]
Finite-Lived Intangible Assets, Gross	$ 44,503	$ 35,840
Finite-Lived Intangible Assets, Accumulated Amortization	6,079	3,545
Net Carrying Amount	$ 38,424	$ 32,295
Weighted Average Useful Life	7 years 10 months 24 days	7 years 7 months 18 days
Completed Technology [Member] | Carve-Out Business
Finite-Lived Intangible Assets, Gross	$ 29,700
Finite-Lived Intangible Assets, Accumulated Amortization	4,690
Net Carrying Amount	$ 25,010
Weighted Average Useful Life	7 years 10 months
Backlog [Member]
Finite-Lived Intangible Assets, Gross	$ 5,430	$ 2,330
Finite-Lived Intangible Assets, Accumulated Amortization	1,768	216
Net Carrying Amount	$ 3,662	$ 2,114
Weighted Average Useful Life	2 years	2 years
Backlog [Member] | Carve-Out Business
Finite-Lived Intangible Assets, Gross	$ 2,200
Finite-Lived Intangible Assets, Accumulated Amortization	1,283
Net Carrying Amount	$ 917
Weighted Average Useful Life	2 years