INCOME TAXES Open Years (Details)	24 Months Ended	48 Months Ended	60 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017
U.S. Federal
Tax Years Subject to Examination [Line Items]
Open Tax Year		2014
Other U.S. state and local jurisdictions
Tax Years Subject to Examination [Line Items]
Open Tax Year			2013
U.K.
Tax Years Subject to Examination [Line Items]
Open Tax Year	2016
Australia
Tax Years Subject to Examination [Line Items]
Open Tax Year			2013
Majority of other foreign jurisdictions
Tax Years Subject to Examination [Line Items]
Open Tax Year			2013