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v3.23.3

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Operating Activities |  |  |  |  |  |  |
Net income | $ 167.7 | $ 106.3 | $ 219.5 | $ 152.4 | $ 406.8 | $ 555.2 |
Adjustments to reconcile net income (loss) to net cash provided by (required by) operating activities |  |  |  |  |  |  |
Depreciation and amortization | 57.5 |  | 54.4 |  | 171.7 | 164.5 |
Deferred and noncurrent income tax charges (benefits) |  |  |  |  | 0.1 | 15.0 |
Accretion of asset retirement obligations | 0.7 |  | 0.6 |  | 2.2 | 2.0 | $ 2.7
(Gains) losses from sale of assets | 0.5 |  | (0.3) |  | 0.6 | (2.2) |
Net (increase) decrease in noncash operating working capital |  |  |  |  | (97.2) | 18.8 |
Other operating activities - net |  |  |  |  | 26.7 | 18.2 |
Net cash provided (required) by operating activities |  |  |  |  | 510.9 | 771.5 |
Investing Activities |  |  |  |  |  |  |
Property additions |  |  |  |  | (224.6) | (223.1) |
Proceeds from sale of assets |  |  |  |  | 2.3 | 8.5 |
Investment in marketable securities |  |  |  |  | (11.3) | 0.0 |
Redemptions of marketable securities |  |  |  |  | 18.0 | 0.0 |
Other investing activities - net |  |  |  |  | (1.4) | (0.6) |
Net cash provided (required) by investing activities |  |  |  |  | (217.0) | (215.2) |
Financing Activities |  |  |  |  |  |  |
Purchase of treasury stock |  |  |  |  | (172.7) | (566.9) |
Dividends paid |  |  |  |  | (24.7) | (22.1) |
Borrowings of debt |  |  |  |  | 8.0 | 0.0 |
Repayments of debt |  |  |  |  | (19.6) | (11.4) |
Amounts related to share-based compensation |  |  |  |  | (20.6) | (19.6) |
Net cash provided (required) by financing activities |  |  |  |  | (229.6) | (620.0) |
Net increase (decrease) in cash, cash equivalents, and restricted cash |  |  |  |  | 64.3 | (63.7) |
Cash, cash equivalents, and restricted cash at beginning of period |  | $ 60.5 |  | $ 256.4 | 60.5 | 256.4 | 256.4
Cash, cash equivalents, and restricted cash at end of period | $ 124.8 |  | $ 192.7 |  | $ 124.8 | $ 192.7 | $ 60.5

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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash outflow for purchase of marketable security. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481830/320-10-45-11 + Details
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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480060/805-50-25-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480027/805-50-30-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480027/805-50-30-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-13 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479886/946-10-S99-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References No definition available. + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
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- Definition Amount of cash outflow for debt, mandatory redeemable security, and principal payment for finance lease obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a),(b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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