SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

12 Months Ended

Dec. 31, 2021

Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]

Schedule of supplemental cash flow information

	Year Ended December 31
(in millions)	2021		2020		2019
Cash paid for interest, net of amount capitalized	$	63.2	$	62.4	$	58.2
Cash received for income taxes, net	(55.2)		(16.9)		(33.9)
Significant non-cash investing and financing transactions:
Accounts payable related to construction costs	15.5		23.7		43.3
Increase in receivable related to insurance proceeds	4.3		—		—