PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Property, Plant and Equipment [Line Items]
Cost	$ 1,023,450	$ 832,740
Accumulated Depreciation	(666,546)	(588,031)
Net	356,904	244,709
Computer hardware
Property, Plant and Equipment [Line Items]
Cost	386,400	332,462
Accumulated Depreciation	(254,131)	(226,341)
Net	132,269	106,121
Computer software
Property, Plant and Equipment [Line Items]
Cost	178,899	142,094
Accumulated Depreciation	(135,123)	(117,026)
Net	43,776	25,068
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Cost	216,762	149,053
Accumulated Depreciation	(122,730)	(101,874)
Net	94,032	47,179
Leasehold improvements
Property, Plant and Equipment [Line Items]
Cost	123,607	107,739
Accumulated Depreciation	(94,721)	(86,514)
Net	28,886	21,225
Land and buildings
Property, Plant and Equipment [Line Items]
Cost	62,041	49,011
Accumulated Depreciation	(18,020)	(16,633)
Net	44,021	32,378
Furniture, equipment and other
Property, Plant and Equipment [Line Items]
Cost	55,741	52,381
Accumulated Depreciation	(41,821)	(39,643)
Net	$ 13,920	$ 12,738