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Supplemental Guarantor Condensed Consolidating Financial Statements (Tables) | 9 Months Ended
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Sep. 30, 2013
Supplemental Guarantor Condensed Consolidating Financial Statements -9.25% Notes [Abstract] |
Supplemental Guarantor Consolidating Income Statement [Table Text Block] |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
2012 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |
External |  | $ | — |  |  | $ | 542.6 |  |  | $ | 164.7 |  |  | $ | 1,486.9 |  |  | $ | — |  |  | $ | 2,194.2 |
Intercompany |  | — |  |  | 14.9 |  |  | 174.5 |  |  | 22.3 |  |  | (211.7 | ) |  | — |
Total net sales |  | — |  |  | 557.5 |  |  | 339.2 |  |  | 1,509.2 |  |  | (211.7 | ) |  | 2,194.2 |
Cost of goods sold |  | — |  |  | 544.7 |  |  | 298.3 |  |  | 1,247.2 |  |  | (211.7 | ) |  | 1,878.5 |
Gross profit |  | — |  |  | 12.8 |  |  | 40.9 |  |  | 262.0 |  |  | — |  |  | 315.7 |
Selling, general and administrative expenses |  | — |  |  | 148.2 |  |  | — |  |  | 29.7 |  |  | — |  |  | 177.9 |
Operating income (loss) |  | — |  |  | (135.4 | ) |  | 40.9 |  |  | 232.3 |  |  | — |  |  | 137.8 |
Non-operating income (expense), net |  | — |  |  | (84.5 | ) |  | 1.3 |  |  | (3.0 | ) |  | — |  |  | (86.2 | )
Income (loss) before income taxes |  | — |  |  | (219.9 | ) |  | 42.2 |  |  | 229.3 |  |  | — |  |  | 51.6 |
Income tax expense |  | — |  |  | 0.4 |  |  | — |  |  | 4.4 |  |  | — |  |  | 4.8 |
Earnings (loss) from equity in subsidiaries |  | 47.8 |  |  | 133.8 |  |  | (40.9 | ) |  | — |  |  | (140.7 | ) |  | — |
Net income (loss) before royalties and dividends |  | 47.8 |  |  | (86.5 | ) |  | 1.3 |  |  | 224.9 |  |  | (140.7 | ) |  | 46.8 |
Royalties and dividends |  | — |  |  | 134.3 |  |  | — |  |  | (134.3 | ) |  | — |  |  | — |
Net income after royalties and dividends |  | 47.8 |  |  | 47.8 |  |  | 1.3 |  |  | 90.6 |  |  | (140.7 | ) |  | 46.8 |
Net loss attributable to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | 1.0 |  |  | — |  |  | 1.0 |
Net income attributable to AAM |  | $ | 47.8 |  |  | $ | 47.8 |  |  | $ | 1.3 |  |  | $ | 91.6 |  |  | $ | (140.7 | ) |  | $ | 47.8 |
Other comprehensive loss |  | (116.7 | ) |  | (116.7 | ) |  | (7.3 | ) |  | (1.0 | ) |  | 125.0 |  |  | (116.7 | )
Foreign currency translation adjustments attributable to noncontrolling interests |  | 0.2 |  |  | 0.2 |  |  | — |  |  | 0.2 |  |  | (0.4 | ) |  | 0.2 |
Comprehensive income (loss) attributable to AAM |  | $ | (69.1 | ) |  | $ | (69.1 | ) |  | $ | (6.0 | ) |  | $ | 90.4 |  |  | $ | (15.3 | ) |  | $ | (69.1 | )
Condensed Consolidating Statements of Operations |  |  |  |  |  |  |  |
Three Months Ended September 30, |  |  |  |  |  |  |  |  |  |  |  |
(in millions) |  |  |  |  |  |  |  |  |  |  |  |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
2013 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |
External |  | $ | — |  |  | $ | 162.6 |  |  | $ | 57.8 |  |  | $ | 600.4 |  |  | $ | — |  |  | $ | 820.8 |
Intercompany |  | — |  |  | 5.0 |  |  | 55.2 |  |  | 1.7 |  |  | (61.9 | ) |  | — |
Total net sales |  | — |  |  | 167.6 |  |  | 113.0 |  |  | 602.1 |  |  | (61.9 | ) |  | 820.8 |
Cost of goods sold |  | — |  |  | 170.1 |  |  | 97.2 |  |  | 490.1 |  |  | (61.9 | ) |  | 695.5 |
Gross profit (loss) |  | — |  |  | (2.5 | ) |  | 15.8 |  |  | 112.0 |  |  | — |  |  | 125.3 |
Selling, general and administrative expenses |  | — |  |  | 48.1 |  |  | — |  |  | 9.7 |  |  | — |  |  | 57.8 |
Operating income (loss) |  | — |  |  | (50.6 | ) |  | 15.8 |  |  | 102.3 |  |  | — |  |  | 67.5 |
Non-operating income (expense), net |  | — |  |  | (30.6 | ) |  | 2.5 |  |  | (1.7 | ) |  | — |  |  | (29.8 | )
Income (loss) before income taxes |  | — |  |  | (81.2 | ) |  | 18.3 |  |  | 100.6 |  |  | — |  |  | 37.7 |
Income tax expense |  | — |  |  | 0.9 |  |  | — |  |  | 5.2 |  |  | — |  |  | 6.1 |
Earnings (loss) from equity in subsidiaries |  | 31.6 |  |  | 50.7 |  |  | (1.5 | ) |  | — |  |  | (80.8 | ) |  | — |
Net income (loss) before royalties and dividends |  | 31.6 |  |  | (31.4 | ) |  | 16.8 |  |  | 95.4 |  |  | (80.8 | ) |  | 31.6 |
Royalties and dividends |  | — |  |  | 63.0 |  |  | — |  |  | (63.0 | ) |  | — |  |  | — |
Net income after royalties and dividends |  | 31.6 |  |  | 31.6 |  |  | 16.8 |  |  | 32.4 |  |  | (80.8 | ) |  | 31.6 |
Net loss attributable to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Net income attributable to AAM |  | $ | 31.6 |  |  | $ | 31.6 |  |  | $ | 16.8 |  |  | $ | 32.4 |  |  | $ | (80.8 | ) |  | $ | 31.6 |
Other comprehensive income (loss) |  | 17.0 |  |  | 17.0 |  |  | (0.8 | ) |  | (1.7 | ) |  | (14.5 | ) |  | 17.0 |
Comprehensive income attributable to AAM |  | $ | 48.6 |  |  | $ | 48.6 |  |  | $ | 16.0 |  |  | $ | 30.7 |  |  | $ | (95.3 | ) |  | $ | 48.6 |
Condensed Consolidating Statements of Operations |  |  |  |  |  |  |  |
Nine Months Ended September 30, |  |  |  |  |  |  |  |  |  |  |  |
(in millions) |  |  |  |  |  |  |  |  |  |  |  |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
2013 |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |
External |  | $ | — |  |  | $ | 574.2 |  |  | $ | 170.5 |  |  | $ | 1,631.3 |  |  | $ | — |  |  | $ | 2,376.0 |
Intercompany |  | — |  |  | 13.0 |  |  | 169.1 |  |  | 9.0 |  |  | (191.1 | ) |  | — |
Total net sales |  | — |  |  | 587.2 |  |  | 339.6 |  |  | 1,640.3 |  |  | (191.1 | ) |  | 2,376.0 |
Cost of goods sold |  | — |  |  | 566.3 |  |  | 293.3 |  |  | 1,355.7 |  |  | (191.1 | ) |  | 2,024.2 |
Gross profit |  | — |  |  | 20.9 |  |  | 46.3 |  |  | 284.6 |  |  | — |  |  | 351.8 |
Selling, general and administrative expenses |  | — |  |  | 149.3 |  |  | — |  |  | 28.6 |  |  | — |  |  | 177.9 |
Operating income (loss) |  | — |  |  | (128.4 | ) |  | 46.3 |  |  | 256.0 |  |  | — |  |  | 173.9 |
Non-operating income (expense), net |  | — |  |  | (101.4 | ) |  | 7.9 |  |  | (6.6 | ) |  | — |  |  | (100.1 | )
Income (loss) before income taxes |  | — |  |  | (229.8 | ) |  | 54.2 |  |  | 249.4 |  |  | — |  |  | 73.8 |
Income tax expense (benefit) |  | — |  |  | (13.0 | ) |  | — |  |  | 22.1 |  |  | — |  |  | 9.1 |
Earnings (loss) from equity in subsidiaries |  | 64.7 |  |  | 115.6 |  |  | (14.4 | ) |  | — |  |  | (165.9 | ) |  | — |
Net income (loss) before royalties and dividends |  | 64.7 |  |  | (101.2 | ) |  | 39.8 |  |  | 227.3 |  |  | (165.9 | ) |  | 64.7 |
Royalties and dividends |  | — |  |  | 165.9 |  |  | — |  |  | (165.9 | ) |  | — |  |  | — |
Net income after royalties and dividends |  | 64.7 |  |  | 64.7 |  |  | 39.8 |  |  | 61.4 |  |  | (165.9 | ) |  | 64.7 |
Net loss attributable to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Net income attributable to AAM |  | $ | 64.7 |  |  | $ | 64.7 |  |  | $ | 39.8 |  |  | $ | 61.4 |  |  | $ | (165.9 | ) |  | $ | 64.7 |
Other comprehensive loss |  | (0.8 | ) |  | (0.8 | ) |  | (14.4 | ) |  | (17.8 | ) |  | 33.0 |  |  | (0.8 | )
Comprehensive income attributable to AAM |  | $ | 63.9 |  |  | $ | 63.9 |  |  | $ | 25.4 |  |  | $ | 43.6 |  |  | $ | (132.9 | ) |  | $ | 63.9 |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
External |  | $ | — |  |  | $ | 162.2 |  |  | $ | 55.4 |  |  | $ | 485.3 |  |  | $ | — |  |  | $ | 702.9 |
Intercompany |  | — |  |  | 3.5 |  |  | 54.4 |  |  | 10.1 |  |  | (68.0 | ) |  | — |
Total net sales |  | — |  |  | 165.7 |  |  | 109.8 |  |  | 495.4 |  |  | (68.0 | ) |  | 702.9 |
Cost of goods sold |  | — |  |  | 164.3 |  |  | 97.7 |  |  | 418.2 |  |  | (68.0 | ) |  | 612.2 |
Gross profit |  | — |  |  | 1.4 |  |  | 12.1 |  |  | 77.2 |  |  | — |  |  | 90.7 |
Selling, general and administrative expenses |  | — |  |  | 50.0 |  |  | — |  |  | 10.6 |  |  | — |  |  | 60.6 |
Operating income (loss) |  | — |  |  | (48.6 | ) |  | 12.1 |  |  | 66.6 |  |  | — |  |  | 30.1 |
Non-operating income (expense), net |  | — |  |  | (35.7 | ) |  | 0.1 |  |  | (1.8 | ) |  | — |  |  | (37.4 | )
Income (loss) before income taxes |  | — |  |  | (84.3 | ) |  | 12.2 |  |  | 64.8 |  |  | — |  |  | (7.3 | )
Income tax expense |  | — |  |  | 0.1 |  |  | — |  |  | 0.8 |  |  | — |  |  | 0.9 |
Earnings (loss) from equity in subsidiaries |  | (8.1 | ) |  | 34.5 |  |  | (14.7 | ) |  | — |  |  | (11.7 | ) |  | — |
Net income (loss) before royalties and dividends |  | (8.1 | ) |  | (49.9 | ) |  | (2.5 | ) |  | 64.0 |  |  | (11.7 | ) |  | (8.2 | )
Royalties and dividends |  | — |  |  | 41.8 |  |  | — |  |  | (41.8 | ) |  | — |  |  | — |
Net income (loss) after royalties and dividends |  | (8.1 | ) |  | (8.1 | ) |  | (2.5 | ) |  | 22.2 |  |  | (11.7 | ) |  | (8.2 | )
Net loss attributable to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | 0.1 |  |  | — |  |  | 0.1 |
Net income (loss) attributable to AAM |  | $ | (8.1 | ) |  | $ | (8.1 | ) |  | $ | (2.5 | ) |  | $ | 22.3 |  |  | $ | (11.7 | ) |  | $ | (8.1 | )
Other comprehensive income (loss) |  | (95.6 | ) |  | (95.6 | ) |  | 4.1 |  |  | 5.8 |  |  | 85.7 |  |  | (95.6 | )
Comprehensive income (loss) attributable to AAM |  | $ | (103.7 | ) |  | $ | (103.7 | ) |  | $ | 1.6 |  |  | $ | 28.1 |  |  | $ | 74.0 |  |  | $ | (103.7 | )
Supplemental Guarantor Consolidating Balance Sheet [Table Text Block] |
Condensed Consolidating Balance Sheets |  |  |  |  |  |  |  |  |  |
(in millions) |  |  |  |  |  |  |  |  |  |  |  |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
September 30, 2013 |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | — |  |  | $ | 25.1 |  |  | $ | — |  |  | $ | 93.5 |  |  | $ | — |  |  | $ | 118.6 |
Accounts receivable, net |  | — |  |  | 124.6 |  |  | 32.1 |  |  | 440.2 |  |  | — |  |  | 596.9 |
Inventories, net |  | — |  |  | 55.1 |  |  | 32.3 |  |  | 164.1 |  |  | — |  |  | 251.5 |
Other current assets |  | — |  |  | 43.6 |  |  | 3.7 |  |  | 77.4 |  |  | — |  |  | 124.7 |
Total current assets |  | — |  |  | 248.4 |  |  | 68.1 |  |  | 775.2 |  |  | — |  |  | 1,091.7 |
Property, plant and equipment, net |  | — |  |  | 244.0 |  |  | 80.4 |  |  | 717.4 |  |  | — |  |  | 1,041.8 |
Goodwill |  | — |  |  | — |  |  | 147.8 |  |  | 8.7 |  |  | — |  |  | 156.5 |
Other assets and deferred charges |  | — |  |  | 694.2 |  |  | 44.4 |  |  | 89.9 |  |  | — |  |  | 828.5 |
Investment in subsidiaries |  | 277.3 |  |  | 1,193.9 |  |  | 0.3 |  |  | — |  |  | (1,471.5 | ) |  | — |
Total assets |  | $ | 277.3 |  |  | $ | 2,380.5 |  |  | $ | 341.0 |  |  | $ | 1,591.2 |  |  | $ | (1,471.5 | ) |  | $ | 3,118.5 |
Liabilities and stockholders’ equity (deficit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable |  | $ | — |  |  | $ | 106.2 |  |  | $ | 49.1 |  |  | $ | 329.7 |  |  | $ | — |  |  | $ | 485.0 |
Other current liabilities |  | — |  |  | 120.4 |  |  | 4.7 |  |  | 94.0 |  |  | — |  |  | 219.1 |
Total current liabilities |  | — |  |  | 226.6 |  |  | 53.8 |  |  | 423.7 |  |  | — |  |  | 704.1 |
Intercompany payable (receivable) |  | 324.1 |  |  | (423.9 | ) |  | (209.3 | ) |  | 309.1 |  |  | — |  |  | — |
Long-term debt |  | — |  |  | 1,487.9 |  |  | 5.4 |  |  | 79.3 |  |  | — |  |  | 1,572.6 |
Other long-term liabilities |  | — |  |  | 812.6 |  |  | 0.7 |  |  | 75.3 |  |  | — |  |  | 888.6 |
Total liabilities |  | 324.1 |  |  | 2,103.2 |  |  | (149.4 | ) |  | 887.4 |  |  | — |  |  | 3,165.3 |
Total AAM Stockholders’ equity (deficit) |  | (46.8 | ) |  | 277.3 |  |  | 490.4 |  |  | 703.8 |  |  | (1,471.5 | ) |  | (46.8 | )
Noncontrolling interests in subsidiaries |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total stockholders’ equity (deficit) |  | (46.8 | ) |  | 277.3 |  |  | 490.4 |  |  | 703.8 |  |  | (1,471.5 | ) |  | (46.8 | )
Total liabilities and stockholders’ equity (deficit) |  | $ | 277.3 |  |  | $ | 2,380.5 |  |  | $ | 341.0 |  |  | $ | 1,591.2 |  |  | $ | (1,471.5 | ) |  | $ | 3,118.5 |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | — |  |  | $ | 10.6 |  |  | $ | — |  |  | $ | 51.8 |  |  | $ | — |  |  | $ | 62.4 |
Accounts receivable, net |  | — |  |  | 94.4 |  |  | 25.3 |  |  | 343.7 |  |  | — |  |  | 463.4 |
Inventories, net |  | — |  |  | 48.7 |  |  | 31.6 |  |  | 144.0 |  |  | — |  |  | 224.3 |
Other current assets |  | — |  |  | 48.8 |  |  | 3.5 |  |  | 69.7 |  |  | — |  |  | 122.0 |
Total current assets |  | — |  |  | 202.5 |  |  | 60.4 |  |  | 609.2 |  |  | — |  |  | 872.1 |
Property, plant and equipment, net |  | — |  |  | 250.4 |  |  | 84.2 |  |  | 675.1 |  |  | — |  |  | 1,009.7 |
Goodwill |  | — |  |  | — |  |  | 147.8 |  |  | 8.6 |  |  | — |  |  | 156.4 |
Other assets and deferred charges |  | — |  |  | 706.1 |  |  | 40.0 |  |  | 81.7 |  |  | — |  |  | 827.8 |
Investment in subsidiaries |  | 202.9 |  |  | 1,094.6 |  |  | — |  |  | — |  |  | (1,297.5 | ) |  | — |
Total assets |  | $ | 202.9 |  |  | $ | 2,253.6 |  |  | $ | 332.4 |  |  | $ | 1,374.6 |  |  | $ | (1,297.5 | ) |  | $ | 2,866.0 |
Liabilities and stockholders’ equity (deficit) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable |  | $ | — |  |  | $ | 91.4 |  |  | $ | 37.3 |  |  | $ | 267.4 |  |  | $ | — |  |  | $ | 396.1 |
Other current liabilities |  | — |  |  | 124.5 |  |  | 3.8 |  |  | 76.4 |  |  | — |  |  | 204.7 |
Total current liabilities |  | — |  |  | 215.9 |  |  | 41.1 |  |  | 343.8 |  |  | — |  |  | 600.8 |
Intercompany payable (receivable) |  | 323.7 |  |  | (420.6 | ) |  | (188.7 | ) |  | 285.6 |  |  | — |  |  | — |
Long-term debt |  | — |  |  | 1,387.5 |  |  | 5.6 |  |  | 61.0 |  |  | — |  |  | 1,454.1 |
Investment in subsidiaries obligation |  | — |  |  | — |  |  | 7.6 |  |  | — |  |  | (7.6 | ) |  | — |
Other long-term liabilities |  | — |  |  | 867.9 |  |  | 1.2 |  |  | 62.8 |  |  | — |  |  | 931.9 |
Total liabilities |  | 323.7 |  |  | 2,050.7 |  |  | (133.2 | ) |  | 753.2 |  |  | (7.6 | ) |  | 2,986.8 |
Total AAM Stockholders’ equity (deficit) |  | (120.8 | ) |  | 202.9 |  |  | 465.6 |  |  | 621.4 |  |  | (1,289.9 | ) |  | (120.8 | )
Noncontrolling interests in subsidiaries |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total stockholders’ equity (deficit) |  | (120.8 | ) |  | 202.9 |  |  | 465.6 |  |  | 621.4 |  |  | (1,289.9 | ) |  | (120.8 | )
Total liabilities and stockholders’ equity (deficit) |  | $ | 202.9 |  |  | $ | 2,253.6 |  |  | $ | 332.4 |  |  | $ | 1,374.6 |  |  | $ | (1,297.5 | ) |  | $ | 2,866.0 |
Supplemental Guarantor Consolidating Statement of Cash Flows [Table Text Block] |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
2012 |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by (used in) operating activities |  | $ | — |  |  | $ | (276.8 | ) |  | $ | 42.3 |  |  | $ | 37.9 |  |  | $ | — |  |  | $ | (196.6 | )
Investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases of property, plant and equipment |  | — |  |  | (36.2 | ) |  | (6.2 | ) |  | (101.3 | ) |  | — |  |  | (143.7 | )
Proceeds from sale of equipment |  | — |  |  | 0.5 |  |  | — |  |  | 1.7 |  |  | — |  |  | 2.2 |
Net cash used in investing activities |  | — |  |  | (35.7 | ) |  | (6.2 | ) |  | (99.6 | ) |  | — |  |  | (141.5 | )
Financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net debt activity |  | — |  |  | 409.6 |  |  | (0.2 | ) |  | (12.4 | ) |  | — |  |  | 397.0 |
Intercompany activity |  | 5.9 |  |  | (19.0 | ) |  | (35.9 | ) |  | 49.0 |  |  | — |  |  | — |
Purchase of noncontrolling interest |  | — |  |  | — |  |  | — |  |  | (4.0 | ) |  | — |  |  | (4.0 | )
Debt issuance costs |  | — |  |  | (10.1 | ) |  | — |  |  | — |  |  | — |  |  | (10.1 | )
Employee stock option exercises |  | — |  |  | 0.1 |  |  | — |  |  | — |  |  | — |  |  | 0.1 |
Purchase of treasury stock |  | (5.9 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | (5.9 | )
Net cash provided by (used in) financing activities |  | — |  |  | 380.6 |  |  | (36.1 | ) |  | 32.6 |  |  | — |  |  | 377.1 |
Effect of exchange rate changes on cash |  | — |  |  | — |  |  | — |  |  | 0.8 |  |  | — |  |  | 0.8 |
Net increase (decrease) in cash and cash equivalents |  | — |  |  | 68.1 |  |  | — |  |  | (28.3 | ) |  | — |  |  | 39.8 |
Cash and cash equivalents at beginning of period |  | — |  |  | 83.7 |  |  | — |  |  | 85.5 |  |  | — |  |  | 169.2 |
Cash and cash equivalents at end of period |  | $ | — |  |  | $ | 151.8 |  |  | $ | — |  |  | $ | 57.2 |  |  | $ | — |  |  | $ | 209.0 |
Condensed Consolidating Statements of Cash Flows |  |  |  |  |  |  |  |
Nine Months Ended September 30, |  |  |  |  |  |  |  |  |  |  |  |
(in millions) |  |  |  |  |  |  |  |  |  |  |  |
|  | Holdings |  | AAM Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Elims |  | Consolidated
2013 |  |  |  |  |  |  |  |  |  |  |  |
Net cash provided by (used in) operating activities |  | $ | — |  |  | $ | (52.6 | ) |  | $ | 67.7 |  |  | $ | 87.2 |  |  | $ | — |  |  | $ | 102.3 |
Investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases of property, plant and equipment |  | — |  |  | (43.6 | ) |  | (7.0 | ) |  | (127.6 | ) |  | — |  |  | (178.2 | )
Proceeds from sale of equipment |  | — |  |  | 4.9 |  |  | 0.5 |  |  | 0.4 |  |  | — |  |  | 5.8 |
Proceeds from sale-leaseback of equipment |  | — |  |  | 23.5 |  |  | — |  |  | — |  |  | — |  |  | 23.5 |
Net cash used in investing activities |  | — |  |  | (15.2 | ) |  | (6.5 | ) |  | (127.2 | ) |  | — |  |  | (148.9 | )
Financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net debt activity |  | — |  |  | 97.0 |  |  | (0.2 | ) |  | 19.0 |  |  | — |  |  | 115.8 |
Intercompany activity |  | 0.4 |  |  | (2.6 | ) |  | (61.0 | ) |  | 63.2 |  |  | — |  |  | — |
Debt issuance costs |  | — |  |  | (12.9 | ) |  | — |  |  | — |  |  | — |  |  | (12.9 | )
Employee stock option exercises |  | — |  |  | 0.8 |  |  | — |  |  | — |  |  | — |  |  | 0.8 |
Purchase of treasury stock |  | (0.4 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | (0.4 | )
Net cash provided by (used in) financing activities |  | — |  |  | 82.3 |  |  | (61.2 | ) |  | 82.2 |  |  | — |  |  | 103.3 |
Effect of exchange rate changes on cash |  | — |  |  | — |  |  | — |  |  | (0.5 | ) |  | — |  |  | (0.5 | )
Net increase in cash and cash equivalents |  | — |  |  | 14.5 |  |  | — |  |  | 41.7 |  |  | — |  |  | 56.2 |
Cash and cash equivalents at beginning of period |  | — |  |  | 10.6 |  |  | — |  |  | 51.8 |  |  | — |  |  | 62.4 |
Cash and cash equivalents at end of period |  | $ | — |  |  | $ | 25.1 |  |  | $ | — |  |  | $ | 93.5 |  |  | $ | — |  |  | $ | 118.6 |

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