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Condensed Consolidating Financial Information - Cash Flows (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net cash provided by (used in) operating activities | $ 33.3 | $ (4.4)
Net cash provided by (used in) investing activities |  |
Purchase of property, plant and equipment | (11.5) | (39.9)
Proceeds from sale of joint venture |  | 10.5
Proceeds from sales of property, plant & equipment | 0.1 | 0.0
Intercompany transactions | 0.0 | 0.0
Net cash provided by (used in) investing activities | (11.4) | (29.4)
Net cash provided by (used in) financing activities |  |
Repayment of debt | (250.0) | 0.0
Proceeds from issuance of debt | 243.8 | 0.0
Repayments on Hawesville term loan | (15.0) | 0.0
Borrowing under Hawesville term loan | 0.0 | 40.0
Borrowings under revolving credit facilities | 173.6 | 314.6
Repayments under revolving credit facilities | (127.6) | (337.5)
Debt issuance costs | (1.1) | 0.0
Debt retirement costs | (0.2) | 0.0
Other short term borrowings |  | 3.4
Repayment on other short-term borrowings | 0.0 | (3.4)
Issuance of common stock | 0.0 | 0.3
Intercompany transactions | 0.0 | 0.0
Net cash provided by (used in) financing activities | 23.5 | 17.4
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 45.4 | (16.4)
Cash, cash equivalents and restricted cash, beginning of period | 39.7 | 39.7
Cash, cash equivalents and restricted cash, end of period | 85.1 | 23.3
Consolidating Adjustments [Member] |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net cash provided by (used in) operating activities | 0.0 | 0.0
Net cash provided by (used in) investing activities |  |
Purchase of property, plant and equipment | 0.0 | 0.0
Proceeds from sale of joint venture |  | 0.0
Proceeds from sales of property, plant & equipment | 0.0 |
Intercompany transactions | 21.6 | 59.9
Net cash provided by (used in) investing activities | 21.6 | 59.9
Net cash provided by (used in) financing activities |  |
Repayment of debt | 0.0 |
Proceeds from issuance of debt | 0.0 |
Repayments on Hawesville term loan | 0.0 |
Borrowing under Hawesville term loan |  | 0.0
Borrowings under revolving credit facilities | 0.0 | 0.0
Repayments under revolving credit facilities | 0.0 | 0.0
Debt issuance costs | 0.0 |
Debt retirement costs | 0.0 |
Other short term borrowings |  | 0.0
Repayment on other short-term borrowings |  | 0.0
Issuance of common stock |  | 0.0
Intercompany transactions | (21.6) | (59.9)
Net cash provided by (used in) financing activities | (21.6) | (59.9)
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 0.0 | 0.0
Cash, cash equivalents and restricted cash, beginning of period | 0.0 | 0.0
Cash, cash equivalents and restricted cash, end of period | 0.0 | 0.0
The Company [Member] | Reportable Legal Entities [Member] |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net cash provided by (used in) operating activities | (26.1) | (57.1)
Net cash provided by (used in) investing activities |  |
Purchase of property, plant and equipment | (0.8) | (0.6)
Proceeds from sale of joint venture |  | 0.0
Proceeds from sales of property, plant & equipment | 0.0 |
Intercompany transactions | 14.9 | (9.3)
Net cash provided by (used in) investing activities | 14.1 | (9.9)
Net cash provided by (used in) financing activities |  |
Repayment of debt | (250.0) |
Proceeds from issuance of debt | 243.8 |
Repayments on Hawesville term loan | (15.0) |
Borrowing under Hawesville term loan |  | 40.0
Borrowings under revolving credit facilities | 128.6 | 295.1
Repayments under revolving credit facilities | (127.6) | (318.0)
Debt issuance costs | (1.1) |
Debt retirement costs | (0.2) |
Other short term borrowings |  | 3.4
Repayment on other short-term borrowings |  | (3.4)
Issuance of common stock |  | 0.3
Intercompany transactions | 36.3 | 51.0
Net cash provided by (used in) financing activities | 14.8 | 68.4
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 2.8 | 1.4
Cash, cash equivalents and restricted cash, beginning of period | 0.3 | 0.1
Cash, cash equivalents and restricted cash, end of period | 3.1 | 1.5
Combined Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member] |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net cash provided by (used in) operating activities | 21.3 | 45.0
Net cash provided by (used in) investing activities |  |
Purchase of property, plant and equipment | (9.3) | (26.4)
Proceeds from sale of joint venture |  | 0.0
Proceeds from sales of property, plant & equipment | 0.0 |
Intercompany transactions | (38.3) | (52.6)
Net cash provided by (used in) investing activities | (47.6) | (79.0)
Net cash provided by (used in) financing activities |  |
Repayment of debt | 0.0 |
Proceeds from issuance of debt | 0.0 |
Repayments on Hawesville term loan | 0.0 |
Borrowing under Hawesville term loan |  | 0.0
Borrowings under revolving credit facilities | 0.0 | 0.0
Repayments under revolving credit facilities | 0.0 | 0.0
Debt issuance costs | 0.0 |
Debt retirement costs | 0.0 |
Other short term borrowings |  | 0.0
Repayment on other short-term borrowings |  | 0.0
Issuance of common stock |  | 0.0
Intercompany transactions | 27.4 | 34.0
Net cash provided by (used in) financing activities | 27.4 | 34.0
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 1.1 | 0.0
Cash, cash equivalents and restricted cash, beginning of period | 0.9 | 0.8
Cash, cash equivalents and restricted cash, end of period | 2.0 | 0.8
Combined Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member] |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net cash provided by (used in) operating activities | 38.1 | 7.7
Net cash provided by (used in) investing activities |  |
Purchase of property, plant and equipment | (1.4) | (12.9)
Proceeds from sale of joint venture |  | 10.5
Proceeds from sales of property, plant & equipment | 0.1 |
Intercompany transactions | 1.8 | 2.0
Net cash provided by (used in) investing activities | 0.5 | (0.4)
Net cash provided by (used in) financing activities |  |
Repayment of debt | 0.0 |
Proceeds from issuance of debt | 0.0 |
Repayments on Hawesville term loan | 0.0 |
Borrowing under Hawesville term loan |  | 0.0
Borrowings under revolving credit facilities | 45.0 | 19.5
Repayments under revolving credit facilities | 0.0 | (19.5)
Debt issuance costs | 0.0 |
Debt retirement costs | 0.0 |
Other short term borrowings |  | 0.0
Repayment on other short-term borrowings |  | 0.0
Issuance of common stock |  | 0.0
Intercompany transactions | (42.1) | (25.1)
Net cash provided by (used in) financing activities | 2.9 | (25.1)
CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | 41.5 | (17.8)
Cash, cash equivalents and restricted cash, beginning of period | 38.5 | 38.8
Cash, cash equivalents and restricted cash, end of period | $ 80.0 | $ 21.0

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