SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
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)
Accounts payable related to construction costs	15.5	23.7	43.3
Increase in receivable related to insurance proceeds	$ 4.3	$ 0.0	$ 0.0

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

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- Definition

The amount of a receivable for proceeds from the settlement of a corporate-owned life insurance policy, considered to be an investing activity.

+ References

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