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Other Financial Information

12 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Other Financial Information

Other Financial Information

CASH FLOW DISCLOSURES — Cash income taxes paid (collected), net of refunds, were $96.5 million, $26.9 million and $17.4 million for the three years ended December 31, 2020, 2019 and 2018, respectively. Interest paid, net of amounts capitalized, was $49.1 million, $56.6 million and $50.4 million for the years ended December 31, 2020, 2019 and 2018, respectively.

CHANGES IN WORKING CAPITAL -

			Years ended December 31,
(Millions of dollars)			2020						2019						2018
Accounts receivable			$	4.9					$	(33.4)					$	86.6
Inventories			(51.7)						(6.1)						(39.0)
Prepaid expenses and other current assets			16.6						(3.3)						11.4
Accounts payable and accrued liabilities			8.3						(5.9)						(56.7)
Income taxes payable			8.8						—						—
Net decrease (increase) in noncash operating working capital			$	(13.1)					$	(48.7)					$	2.3

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