REVENUE RECOGNITION (Detail Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Change In Accounting Estimate [Line Items]
Income before income taxes									$ 499,615	$ 401,637	$ 327,909
Diluted earnings per share	$ 5.74	$ 4.78	$ 4.18	$ 3.67	$ 3.68	$ 3.16	$ 3.11	$ 2.66	$ 18.30	$ 12.61	$ 10.46
EAC Adjustments
Change In Accounting Estimate [Line Items]
Income before income taxes									$ 44,100	$ 33,000
Diluted earnings per share									$ 1.30	$ 0.95
Revenue from previously satisfied performance obligations									$ 2,500	$ 10,500