SHARE INCENTIVE PLANS (Employee Stock Purchase Plan activity) (Details) - $ / shares	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement [Abstract]
Stock issued during period, employee stock ownership plan (in shares)	309,723	490,123
Average price per share (in USD per share)	$ 78.92	$ 46.62

Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Name:	us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration