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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	[1]	Jun. 30, 2018
Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 458,186		$ 449,974
Less accumulated amortization	(227,630)		(208,219)
Total intangible assets, net	230,556		241,755
Customer contracts and related customer relationships
Finite Lived Intangible Assets [Line Items]
Intangible assets	444,221		435,933
Less accumulated amortization	(217,673)		(199,018)
Acquired technologies
Finite Lived Intangible Assets [Line Items]
Intangible assets	13,165		13,237
Less accumulated amortization	(9,484)		(8,761)
Other
Finite Lived Intangible Assets [Line Items]
Intangible assets	800		804
Less accumulated amortization	$ (473)		$ (440)
[1] During the six months ended December 31, 2018, the Company removed $0.2 million in fully amortized intangible assets.

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