Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016
Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 668,466	$ 668,772
Less accumulated amortization	(423,616)	(393,400)
Total intangible assets, net	244,850	275,372
Customer contracts and related customer relationships
Finite Lived Intangible Assets [Line Items]
Intangible assets	635,194	635,826
Less accumulated amortization	(392,935)	(363,412)
Acquired technologies
Finite Lived Intangible Assets [Line Items]
Intangible assets	28,451	28,074
Less accumulated amortization	(26,342)	(25,693)
Covenants not to compete
Finite Lived Intangible Assets [Line Items]
Intangible assets	3,284	3,321
Less accumulated amortization	(3,252)	(3,245)
Other
Finite Lived Intangible Assets [Line Items]
Intangible assets	1,537	1,551
Less accumulated amortization	$ (1,087)	$ (1,050)