INTANGIBLE ASSETS - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018	[1]
Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 688,311	$ 449,974
Less accumulated amortization	(252,196)	(208,219)
Total intangible assets, net	436,115	241,755
Customer contracts and related customer relationships
Finite Lived Intangible Assets [Line Items]
Intangible assets	549,552	435,933
Less accumulated amortization	(236,935)	(199,018)
Acquired technologies
Finite Lived Intangible Assets [Line Items]
Intangible assets	137,959	13,237
Less accumulated amortization	(14,750)	(8,761)
Other
Finite Lived Intangible Assets [Line Items]
Intangible assets	800	804
Less accumulated amortization	$ (511)	$ (440)

[1] During FY2019 and FY2018, the Company removed $1.5 million and $264.1 million, respectively, in fully amortized intangible assets.