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Acquisitions and Divestitures (Allocation of Acquisition Costs to Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Mar. 16, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 1,524,929 |  | $ 1,396,529
Akron Brass |  |  |
Business Acquisition [Line Items] |  |  |
Current assets, net of cash acquired |  | $ 51,887 |
Property, plant and equipment |  | 10,332 |
Goodwill | 119,100 | 119,131 |
Intangible assets | $ 92,100 | 92,100 |
Total assets acquired |  | 273,450 |
Current liabilities |  | (6,531) |
Deferred tax liability |  | (39,114) |
Other noncurrent liabilities |  | (6,249) |
Net assets acquired |  | $ 221,556 |

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