STOCKHOLDERS' EQUITY: - Non Controlling Interest (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Non-controlling interest activity
Balance at the beginning of the period			$ 58.6	$ 51.2
Net earnings	$ 1.9	$ 3.7	5.0	7.0
Dividend paid			(3.8)	(2.9)
Balance at the end of the period	$ 59.8	$ 55.3	$ 59.8	$ 55.3