LEGAL MATTERS (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020
Legal matters
Professional service fees relating to our construction litigation	$ 0.2	$ 0.3
PCL Construction Services, Inc.
Legal matters
Professional service fees relating to our construction litigation	$ 0.2	$ 0.3

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