REVENUE RECOGNITION (Detail Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Change In Accounting Estimate [Line Items]
Income before income taxes									$ 401,637	$ 327,909	$ 298,664
Diluted earnings per share	$ 3.68	$ 3.16	$ 3.11	$ 2.66	$ 1.96	$ 2.69	$ 2.71	$ 3.10	$ 12.61	$ 10.46	$ 11.93
EAC Adjustments
Change In Accounting Estimate [Line Items]
Income before income taxes									$ 33,000	$ 19,700
Diluted earnings per share									$ 0.95	$ 0.57
Revenue from previously satisfied performance obligations									$ 10,500