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v3.22.4

Accumulated Other Comprehensive Loss (AOCL) - Changes In Components Of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance, start | $ 421.0 | $ 546.1 | $ 675.0
Other comprehensive income (loss) before reclassifications | (5.9) | 31.6 | (13.5)
Net amount reclassified to net income (loss) | (5.8) | 4.9 | 4.5
Balance, end | 399.3 | 421.0 | 546.1
Cost of goods sold | 2,730.6 | 2,088.3 | 1,641.6
Other income, net | 15.3 | 3.1 | 3.5
Selling, general and administrative expenses | 37.5 | 57.6 | 43.5
Other operating expense (income), net | 0.0 | 0.6 | 0.5
Income tax (expense) benefit | 47.4 | (30.6) | (3.1)
Net loss | 14.1 | 167.1 | 123.3
Defined benefit plan and other postretirement liabilities |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance, start | (84.0) | (120.6) | (111.7)
Other comprehensive income (loss) before reclassifications | (5.9) | 31.6 | (13.5)
Net amount reclassified to net income (loss) | (5.7) | 5.0 | 4.6
Balance, end | (95.6) | (84.0) | (120.6)
Unrealized gain (loss) on financial instruments |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance, start | 1.7 | 1.8 | 1.9
Other comprehensive income (loss) before reclassifications | 0.0 | 0.0 | 0.0
Net amount reclassified to net income (loss) | (0.1) | (0.1) | (0.1)
Balance, end | 1.6 | 1.7 | 1.8
Accumulated other comprehensive loss |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance, start | (82.3) | (118.8) | (109.8)
Balance, end | (94.0) | (82.3) | (118.8)
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit plan and other postretirement liabilities |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Cost of goods sold | 3.5 | 26.8 | (4.7)
Other income, net | (8.9) | 0.0 | 0.0
Selling, general and administrative expenses | 3.3 | 2.9 | (2.0)
Other operating expense (income), net | (9.0) | 7.3 | (1.1)
Income tax (expense) benefit | (0.3) | (0.4) | (1.1)
Net loss | (11.4) | 36.6 | (8.9)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized gain (loss) on financial instruments |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Cost of goods sold | (0.2) | (0.1) | (0.2)
Income tax (expense) benefit | (0.1) | 0.0 | 0.1
Net loss | $ (0.3) | $ (0.1) | $ (0.1)

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