SUBSEQUENT EVENT SUBSEQUENT EVENT (Details) - $ / shares shares in Thousands		3 Months Ended								12 Months Ended
	Dec. 15, 2017	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Subsequent Event [Line Items]
Earnings Per Share, Basic		$ 0.64	$ 0.54	$ 0.54	$ 0.49	$ 0.53	$ 0.50	$ 0.46	$ 0.37	$ 2.21	$ 1.86	$ 1.60
Earnings Per Share, Diluted		$ 0.62	$ 0.53	$ 0.53	$ 0.47	$ 0.52	$ 0.49	$ 0.45	$ 0.37	$ 2.14	$ 1.83	$ 1.57
Weighted average common shares outstanding - basic										84,290	83,807	83,425
Weighted Average Number of Shares Outstanding, Diluted										86,776	85,213	84,764
FYE 2017 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Earnings Per Share, Basic	$ 1.77
Earnings Per Share, Diluted	$ 1.71
Weighted average common shares outstanding - basic	105,363
Weighted Average Number of Shares Outstanding, Diluted	108,470
FYE 2016 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Earnings Per Share, Basic	$ 1.49
Earnings Per Share, Diluted	$ 1.47
Weighted average common shares outstanding - basic	104,758
Weighted Average Number of Shares Outstanding, Diluted	106,516
FYE 2015 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Earnings Per Share, Basic	$ 1.28
Earnings Per Share, Diluted	$ 1.26
Weighted average common shares outstanding - basic	104,281
Weighted Average Number of Shares Outstanding, Diluted	105,955