Supplemental Guarantor Information (Condensed Consolidating Balance Sheets) (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018 | Dec. 31, 2017 |
Current assets: | | | | |
Cash and cash equivalents | $ 39.8 | $ 46.6 | | |
Accounts receivable, net | 287.9 | 264.4 | | |
Inventories, net | 329.7 | 317.8 | | |
Receivable from affiliates | 23.5 | 22.3 | | |
Prepaid and other current assets | 75.1 | 82.2 | | |
Total current assets | 756 | 733.3 | | |
Investments in subsidiaries | 0 | 0 | | |
Intercompany advances | 0 | 0 | | |
Property, plant and equipment, net | 227.2 | 221.9 | | |
Operating lease right-of-use assets | 67.9 | 0 | | |
Goodwill | 103.2 | 103.4 | | |
Intangible assets, net | 93.5 | 95.3 | | |
Other long-term assets | 79.9 | 69.8 | | |
Total assets | 1,327.7 | 1,223.7 | | |
Current liabilities: | | | | |
Trade accounts payable | 194.9 | 177.8 | | |
Payable to affiliates | 7.1 | 7.1 | | |
Current portion of long-term debt and short-term debt | 17.9 | 17.9 | | |
Current portion of operating lease liabilities | 12.8 | 0 | | |
Other accrued expenses | 101.4 | 104.4 | | |
Total current liabilities | 334.1 | 307.2 | | |
Long-term liabilities, less current portion: | | | | |
Debt | 546.1 | 547.5 | | |
Long-term operating lease liabilities | 55.9 | 0 | | |
Other long-term liabilities | 54.3 | 51.1 | | |
Total long-term liabilities | 656.3 | 598.6 | | |
Intercompany advances | 0 | 0 | | |
Total Park-Ohio Industries, Inc. and Subsidiaries shareholder's equity | 323.4 | 304.2 | | |
Noncontrolling interests | 13.9 | 13.7 | | |
Total equity | 337.3 | 317.9 | $ 312.7 | $ 292 |
Total liabilities and shareholder's equity | 1,327.7 | 1,223.7 | | |
Reportable Legal Entities | Parent | | | | |
Current assets: | | | | |
Cash and cash equivalents | 0 | 0 | | |
Accounts receivable, net | 0 | 0 | | |
Inventories, net | 0 | 0 | | |
Receivable from affiliates | 23.5 | 22.3 | | |
Prepaid and other current assets | 1.3 | 1.1 | | |
Total current assets | 24.8 | 23.4 | | |
Investments in subsidiaries | 573.3 | 555.9 | | |
Intercompany advances | 453.4 | 460.1 | | |
Property, plant and equipment, net | 5.7 | 5.8 | | |
Operating lease right-of-use assets | 0 | | | |
Goodwill | 0 | 0 | | |
Intangible assets, net | 0 | 0 | | |
Other long-term assets | 67.6 | 58 | | |
Total assets | 1,124.8 | 1,103.2 | | |
Current liabilities: | | | | |
Trade accounts payable | 0 | 0 | | |
Payable to affiliates | 0 | 0 | | |
Current portion of long-term debt and short-term debt | 0 | 0 | | |
Current portion of operating lease liabilities | 0 | | | |
Other accrued expenses | 12.5 | 7.3 | | |
Total current liabilities | 12.5 | 7.3 | | |
Long-term liabilities, less current portion: | | | | |
Debt | 490.4 | 488.9 | | |
Long-term operating lease liabilities | 0 | | | |
Other long-term liabilities | 22.8 | 20.9 | | |
Total long-term liabilities | 513.2 | 509.8 | | |
Intercompany advances | 261.8 | 268.2 | | |
Total Park-Ohio Industries, Inc. and Subsidiaries shareholder's equity | 323.4 | 304.2 | | |
Noncontrolling interests | 13.9 | 13.7 | | |
Total equity | 337.3 | 317.9 | | |
Total liabilities and shareholder's equity | 1,124.8 | 1,103.2 | | |
Reportable Legal Entities | Combined Guarantor Subsidiaries | | | | |
Current assets: | | | | |
Cash and cash equivalents | 0 | 0.4 | | |
Accounts receivable, net | 191.2 | 170 | | |
Inventories, net | 244.7 | 236.7 | | |
Receivable from affiliates | 0 | 0 | | |
Prepaid and other current assets | 39.8 | 46.5 | | |
Total current assets | 475.7 | 453.6 | | |
Investments in subsidiaries | 284.8 | 277.7 | | |
Intercompany advances | 37.3 | 80.6 | | |
Property, plant and equipment, net | 132.4 | 130.6 | | |
Operating lease right-of-use assets | 42.7 | | | |
Goodwill | 63.1 | 63.2 | | |
Intangible assets, net | 56.7 | 57.8 | | |
Other long-term assets | 4.5 | 5.5 | | |
Total assets | 1,097.2 | 1,069 | | |
Current liabilities: | | | | |
Trade accounts payable | 138.9 | 123.6 | | |
Payable to affiliates | 0 | 0 | | |
Current portion of long-term debt and short-term debt | 6.1 | 6.2 | | |
Current portion of operating lease liabilities | 9.3 | | | |
Other accrued expenses | 48.6 | 56.1 | | |
Total current liabilities | 202.9 | 185.9 | | |
Long-term liabilities, less current portion: | | | | |
Debt | 12.7 | 14.3 | | |
Long-term operating lease liabilities | 34.2 | | | |
Other long-term liabilities | 20.2 | 19 | | |
Total long-term liabilities | 67.1 | 33.3 | | |
Intercompany advances | 288.2 | 327 | | |
Total Park-Ohio Industries, Inc. and Subsidiaries shareholder's equity | 539 | 522.8 | | |
Noncontrolling interests | 0 | 0 | | |
Total equity | 539 | 522.8 | | |
Total liabilities and shareholder's equity | 1,097.2 | 1,069 | | |
Reportable Legal Entities | Combined Non-Guarantor Subsidiaries | | | | |
Current assets: | | | | |
Cash and cash equivalents | 39.8 | 46.2 | | |
Accounts receivable, net | 96.7 | 94.4 | | |
Inventories, net | 85 | 81.1 | | |
Receivable from affiliates | 0 | 0 | | |
Prepaid and other current assets | 34 | 34.6 | | |
Total current assets | 255.5 | 256.3 | | |
Investments in subsidiaries | 0 | 0 | | |
Intercompany advances | 203.7 | 236 | | |
Property, plant and equipment, net | 89.1 | 85.5 | | |
Operating lease right-of-use assets | 25.2 | | | |
Goodwill | 40.1 | 40.2 | | |
Intangible assets, net | 36.8 | 37.5 | | |
Other long-term assets | 7.8 | 6.3 | | |
Total assets | 658.2 | 661.8 | | |
Current liabilities: | | | | |
Trade accounts payable | 56 | 54.2 | | |
Payable to affiliates | 7.1 | 7.1 | | |
Current portion of long-term debt and short-term debt | 11.8 | 11.7 | | |
Current portion of operating lease liabilities | 3.5 | | | |
Other accrued expenses | 40.3 | 41 | | |
Total current liabilities | 118.7 | 114 | | |
Long-term liabilities, less current portion: | | | | |
Debt | 43 | 44.3 | | |
Long-term operating lease liabilities | 21.7 | | | |
Other long-term liabilities | 11.3 | 11.2 | | |
Total long-term liabilities | 76 | 55.5 | | |
Intercompany advances | 144.4 | 181.5 | | |
Total Park-Ohio Industries, Inc. and Subsidiaries shareholder's equity | 305.2 | 297.1 | | |
Noncontrolling interests | 13.9 | 13.7 | | |
Total equity | 319.1 | 310.8 | | |
Total liabilities and shareholder's equity | 658.2 | 661.8 | | |
Reclassifications/ Eliminations | | | | |
Current assets: | | | | |
Cash and cash equivalents | 0 | 0 | | |
Accounts receivable, net | 0 | 0 | | |
Inventories, net | 0 | 0 | | |
Receivable from affiliates | 0 | 0 | | |
Prepaid and other current assets | 0 | 0 | | |
Total current assets | 0 | 0 | | |
Investments in subsidiaries | (858.1) | (833.6) | | |
Intercompany advances | (694.4) | (776.7) | | |
Property, plant and equipment, net | 0 | 0 | | |
Operating lease right-of-use assets | 0 | | | |
Goodwill | 0 | 0 | | |
Intangible assets, net | 0 | 0 | | |
Other long-term assets | 0 | 0 | | |
Total assets | (1,552.5) | (1,610.3) | | |
Current liabilities: | | | | |
Trade accounts payable | 0 | 0 | | |
Payable to affiliates | 0 | 0 | | |
Current portion of long-term debt and short-term debt | 0 | 0 | | |
Current portion of operating lease liabilities | 0 | | | |
Other accrued expenses | 0 | 0 | | |
Total current liabilities | 0 | 0 | | |
Long-term liabilities, less current portion: | | | | |
Debt | 0 | 0 | | |
Long-term operating lease liabilities | 0 | | | |
Other long-term liabilities | 0 | 0 | | |
Total long-term liabilities | 0 | 0 | | |
Intercompany advances | (694.4) | (776.7) | | |
Total Park-Ohio Industries, Inc. and Subsidiaries shareholder's equity | (844.2) | (819.9) | | |
Noncontrolling interests | (13.9) | (13.7) | | |
Total equity | (858.1) | (833.6) | | |
Total liabilities and shareholder's equity | $ (1,552.5) | $ (1,610.3) | | |