Acquisitions (Details) - USD ($) $ in Millions | Sep. 16, 2019 | Apr. 01, 2019 | Sep. 18, 2018 | Sep. 01, 2018 | Aug. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 |
Business Acquisition [Line Items] | | | | | | | | |
Acquisitions, net of cash received | | | | | | $ 82.7 | $ 765.4 | |
Goodwill | | | | | | 954.7 | | $ 960.5 |
2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | | | | | | 42.5 | | 42.5 |
Goodwill, Purchase Accounting Adjustments | | | | | | (1.8) | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | | | | | | 61.5 | | 61.6 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | | | | 9.5 | | 8.5 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets | | | | | | (4.9) | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred | | | | | | (4.8) | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | | | | | | 65.4 | | 71.7 |
Goodwill | | | | | | 470 | | 468.2 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | | | | | | 375.4 | | 372.6 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | | | | | | 16.1 | | 20.2 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | | | | | | 1,040.4 | | 1,045.3 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | | | | | | 35.2 | | 35.2 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | (0.1) | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt | | | | | | 0.1 | | 3 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities | | | | | | 115.6 | | 116.2 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | | | | | | 210.9 | | 211 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | | | | | | 829.5 | | 834.3 |
Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | | $ 6.7 | | | | | | |
Business Acquisition, Effective Date of Acquisition | | Apr. 1, 2019 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory | | $ 23.6 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | | 17.2 | | | | | | |
Goodwill | | 18.6 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | | 28.1 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets | | 0.5 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | | 99.9 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable | | 5.7 | | | | | | |
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value | | 1.8 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | | 13.5 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | | 84.6 | | | | | | |
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period | | | | | | 60 | | |
Cash Acquired from Acquisition | | | | | | 1.9 | | |
Business Combination, Acquisition Related Costs | | | | | | 1.4 | | |
Cone Drive [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | Sep. 18, 2018 | | | | | |
Cone Drive [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | Sep. 1, 2018 | | | | |
Acquisitions, net of cash received | | | | | | 2.9 | | |
ABC Bearings [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | Aug. 30, 2018 | | | |
BEKA [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Acquisition, Date of Acquisition Agreement | Sep. 16, 2019 | | | | | | | |
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period | | | | | | 135 | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | $ 165 | | | | | | | |
Leases, Acquired-in-Place [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | 2.8 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | 2.1 | | | | | | |
Inventories, net [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets | | | | | | (0.1) | | |
Other Current Assets [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets | | | | | | 1 | | |
Other Current Assets [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | 2.4 | | | | | | |
Property, plant and equipment, net [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets | | | | | | (6.3) | | |
Other Intangible Assets [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets | | | | | | 2.8 | | |
Other Noncurrent Assets [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets | | | | | | (4.1) | | |
Accrued Liabilities [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | | | | 9.1 | | 9.1 |
Income Taxes Payable [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | | | | 2.9 | | 2.5 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | 0.4 | | |
Other Current Liabilities [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | | | | 8.4 | | 8.2 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | 0.2 | | |
Other Current Liabilities [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | 4.8 | | | | | | |
Short-term Debt [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | | | | | | 1.9 | | 2.5 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | (0.6) | | |
Long-term Debt [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | (2.9) | | |
Deferred Tax Liability [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | (0.6) | | |
Other Noncurrent Liabilities [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities | | | | | | 3.4 | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | | | | | | 20.3 | | 16.9 |
Other Noncurrent Liabilities [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | | 0.9 | | | | | | |
Technology-Based Intangible Assets [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Finite-lived Intangible Assets Acquired | | $ 5.2 | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | 14 years | | | | | | |
Customer Relationships [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Finite-lived Intangible Assets Acquired | | $ 10.6 | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | 17 years | | | | | | |
Pension Plan [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | | | | | | 5.7 | | 5.7 |
Postretirement Benefit Plans [Member] | 2018 Acquisitions [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other | | | | | | $ 11.7 | | $ 11.7 |
Trade Names [Member] | Diamond Chain [Member] | | | | | | | | |
Business Acquisition [Line Items] | | | | | | | | |
Indefinite-lived Intangible Assets Acquired | | $ 12.3 | | | | | | |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | | 0 years | | | | | | |