Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 668,253	$ 668,772
Less accumulated amortization	(413,772)	(393,400)
Total intangible assets, net	254,481	275,372
Customer contracts and related customer relationships
Finite Lived Intangible Assets [Line Items]
Intangible assets	635,004	635,826
Less accumulated amortization	(383,327)	(363,412)
Acquired technologies
Finite Lived Intangible Assets [Line Items]
Intangible assets	28,436	28,074
Less accumulated amortization	(26,147)	(25,693)
Covenants not to compete
Finite Lived Intangible Assets [Line Items]
Intangible assets	3,278	3,321
Less accumulated amortization	(3,231)	(3,245)
Other
Finite Lived Intangible Assets [Line Items]
Intangible assets	1,535	1,551
Less accumulated amortization	$ (1,067)	$ (1,050)