v3.25.2
Segment Information - Summary of Segment Revenue, Significant Expenses Regularly Reviewed By CODM, and Other Segment Items (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]            
Net sales $ 1,169.3   $ 1,225.5   $ 2,305.0 $ 2,464.7
Selling general and administrative expense 203.6   199.0   405.7 415.8
Depreciation and amortization expense         38.6 35.4
Interest and other expense on debt 9.8   11.3   19.3 21.4
Income (loss) before income taxes (6.3)   13.3   (13.2) 3.8
Provision (benefit) for income taxes (8.4)   3.0   (10.0) 0.9
Net Income (loss) 2.1 $ (5.3) 10.3 $ (7.4) (3.2) 2.9
Less: Net income attributable to noncontrolling interest 0.2   0.4   0.5 0.6
Net income (loss) attributable to Ryerson Holding Corporation 1.9   9.9   (3.7) 2.3
Operating Segments [Member]            
Segment Reporting Information [Line Items]            
Net sales 1,169.3   1,225.5   2,305.0 2,464.7
Cost of materials sold, excluding LIFO (income) expense [1] 946.7   1,012.0   1,871.2 2,032.6
LIFO (income) expense [1] 13.2   (10.0)   20.0 (9.0)
Delivery expense [1] 31.7   29.1   61.8 57.8
Compensation and benefits expense [1] 92.9   90.5   189.5 185.8
Selling general and administrative expense [1] 19.1   19.4   36.8 38.2
Operating expense - fixed [1] 18.7   17.3   38.7 36.7
Operating expense - variable [1] 15.3   15.8   30.3 33.0
Reorganization expense [1],[2] 5.0   12.7   9.0 32.8
Depreciation and amortization expense [1] 19.4   18.0   38.6 35.4
Interest and other expense on debt 9.8   11.3   19.3 21.4
Other segment items [3] 3.8   (3.9)   3.0 (3.8)
Income (loss) before income taxes (6.3)   13.3   (13.2) 3.8
Provision (benefit) for income taxes (8.4)   3.0   (10.0) 0.9
Net Income (loss) 2.1   10.3   (3.2) 2.9
Less: Net income attributable to noncontrolling interest 0.2   0.4   0.5 0.6
Net income (loss) attributable to Ryerson Holding Corporation $ 1.9   $ 9.9   $ (3.7) $ 2.3
[1] The significant expense categories and amounts align with the information that is regularly provided to the CODM.
[2] Reorganization expense is used by management to capture excess costs associated with implementing significant Company projects or changes and allows the CODM to assess performance without the impact of these items. It is not a GAAP financial measure. Expenses excluding reorganization expense should not be used as a substitute for total expenses reported on our Condensed Consolidated Statements of Comprehensive Income.
[3] Other segment items include foreign exchange gain and loss, pension settlement and curtailment gains and losses, pension and postretirement benefit costs other than service costs, gains or losses on investments, purchase consideration, gains on insurance settlements, and impairment charges on assets.