SHARE CAPITAL, OPTION PLANS AND SHARE-BASED PAYMENTS - Summary of Information Regarding Stock Options Outstanding (Details) - $ / shares	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Options Outstanding
Number of options Outstanding as of June 30, 2020	7,429,537	7,102,753	7,078,435
Weighted Average Remaining Contractual Life (years)	4 years 9 months 10 days	4 years 1 month 6 days	4 years 5 months 4 days
Weighted Average Exercise Price (in dollars per share)	$ 36.18	$ 31.82	$ 28.41
Options Exercisable
Number of options Exercisable as of June 30, 2020	2,248,358	2,176,002
Weighted Average Exercise Price (in dollars per share)	$ 30.18	$ 27.44
Stock Options Exercise Price Range One
Range of Exercise Prices
Minimum (in dollars per share)	16.58
Maximum (in dollars per share)	$ 27.46
Options Outstanding
Number of options Outstanding as of June 30, 2020	960,483
Weighted Average Remaining Contractual Life (years)	1 year 4 months 20 days
Weighted Average Exercise Price (in dollars per share)	$ 25.84
Options Exercisable
Number of options Exercisable as of June 30, 2020	960,483
Weighted Average Exercise Price (in dollars per share)	$ 25.84
Stock Options Exercise Price Range Two
Range of Exercise Prices
Minimum (in dollars per share)	27.47
Maximum (in dollars per share)	$ 31.50
Options Outstanding
Number of options Outstanding as of June 30, 2020	547,692
Weighted Average Remaining Contractual Life (years)	2 years 10 months 28 days
Weighted Average Exercise Price (in dollars per share)	$ 29.37
Options Exercisable
Number of options Exercisable as of June 30, 2020	405,982
Weighted Average Exercise Price (in dollars per share)	$ 29.20
Stock Options Exercise Price Range Three
Range of Exercise Prices
Minimum (in dollars per share)	31.51
Maximum (in dollars per share)	$ 33.17
Options Outstanding
Number of options Outstanding as of June 30, 2020	615,000
Weighted Average Remaining Contractual Life (years)	3 years 11 months 1 day
Weighted Average Exercise Price (in dollars per share)	$ 32.64
Options Exercisable
Number of options Exercisable as of June 30, 2020	66,667
Weighted Average Exercise Price (in dollars per share)	$ 32.63
Stock Options Exercise Price Range Four
Range of Exercise Prices
Minimum (in dollars per share)	33.18
Maximum (in dollars per share)	$ 34.60
Options Outstanding
Number of options Outstanding as of June 30, 2020	867,036
Weighted Average Remaining Contractual Life (years)	4 years 1 month 17 days
Weighted Average Exercise Price (in dollars per share)	$ 34.10
Options Exercisable
Number of options Exercisable as of June 30, 2020	399,065
Weighted Average Exercise Price (in dollars per share)	$ 34.00
Stock Options Exercise Price Range Five
Range of Exercise Prices
Minimum (in dollars per share)	34.61
Maximum (in dollars per share)	$ 37.54
Options Outstanding
Number of options Outstanding as of June 30, 2020	674,760
Weighted Average Remaining Contractual Life (years)	5 years 2 months 1 day
Weighted Average Exercise Price (in dollars per share)	$ 35.86
Options Exercisable
Number of options Exercisable as of June 30, 2020	231,006
Weighted Average Exercise Price (in dollars per share)	$ 35.32
Stock Options Exercise Price Range Six
Range of Exercise Prices
Minimum (in dollars per share)	37.55
Maximum (in dollars per share)	$ 38.30
Options Outstanding
Number of options Outstanding as of June 30, 2020	439,000
Weighted Average Remaining Contractual Life (years)	6 years 10 months 2 days
Weighted Average Exercise Price (in dollars per share)	$ 37.84
Options Exercisable
Number of options Exercisable as of June 30, 2020	0
Weighted Average Exercise Price (in dollars per share)	$ 0
Stock Options Exercise Price Range Seven
Range of Exercise Prices
Minimum (in dollars per share)	38.31
Maximum (in dollars per share)	$ 39.02
Options Outstanding
Number of options Outstanding as of June 30, 2020	730,110
Weighted Average Remaining Contractual Life (years)	6 years 1 month 6 days
Weighted Average Exercise Price (in dollars per share)	$ 38.76
Options Exercisable
Number of options Exercisable as of June 30, 2020	0
Weighted Average Exercise Price (in dollars per share)	$ 0
Stock Options Exercise Price Range Eight
Range of Exercise Prices
Minimum (in dollars per share)	39.03
Maximum (in dollars per share)	$ 39.98
Options Outstanding
Number of options Outstanding as of June 30, 2020	792,686
Weighted Average Remaining Contractual Life (years)	5 years 2 months 23 days
Weighted Average Exercise Price (in dollars per share)	$ 39.35
Options Exercisable
Number of options Exercisable as of June 30, 2020	185,155
Weighted Average Exercise Price (in dollars per share)	$ 39.36
Stock Options Exercise Price Range Nine
Range of Exercise Prices
Minimum (in dollars per share)	39.99
Maximum (in dollars per share)	$ 43.06
Options Outstanding
Number of options Outstanding as of June 30, 2020	700,980
Weighted Average Remaining Contractual Life (years)	6 years 3 days
Weighted Average Exercise Price (in dollars per share)	$ 40.51
Options Exercisable
Number of options Exercisable as of June 30, 2020	0
Weighted Average Exercise Price (in dollars per share)	$ 0
Stock Options Exercise Price Range Ten
Range of Exercise Prices
Minimum (in dollars per share)	43.07
Maximum (in dollars per share)	$ 44.99
Options Outstanding
Number of options Outstanding as of June 30, 2020	1,101,790
Weighted Average Remaining Contractual Life (years)	6 years 7 months 6 days
Weighted Average Exercise Price (in dollars per share)	$ 44.99
Options Exercisable
Number of options Exercisable as of June 30, 2020	0
Weighted Average Exercise Price (in dollars per share)	$ 0
Stock Options Exercise Price Range Eleven
Range of Exercise Prices
Minimum (in dollars per share)	16.58
Maximum (in dollars per share)	$ 44.99
Options Outstanding
Number of options Outstanding as of June 30, 2020	7,429,537
Weighted Average Remaining Contractual Life (years)	4 years 9 months 10 days
Weighted Average Exercise Price (in dollars per share)	$ 36.18
Options Exercisable
Number of options Exercisable as of June 30, 2020	2,248,358
Weighted Average Exercise Price (in dollars per share)	$ 30.18