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Acquisitions and Dispositions - Acquisitions (Details) - USD ($) $ in Thousands | May 31, 2017 | Apr. 26, 2016 | Jul. 01, 2017 | Dec. 31, 2016
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Business Acquisition [Line Items] |  |  |  |
Noncontrolling interests |  |  | $ 12,635 | $ 37,753
Pexcor/Heatlink [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Consideration transferred net of working capital adjustments | $ 18,500 |  |  |
Cash payment to acquire business | 16,300 |  |  |
Maximum contingent consideration liability | 2,200 |  |  |
Fair value of assets acquired | 10,600 |  |  |
Fair value of inventories acquired | 4,700 |  |  |
Fair value of accounts receivable acquired | 2,900 |  |  |
Fair value of property, plant and equipment acquired | 2,000 |  |  |
Fair value of other current assets acquired | 500 |  |  |
Fair value of other assets acquired | 500 |  |  |
Fair value of liabilities acquired | 3,900 |  |  |
Fair value of accounts payable acquired | 3,600 |  |  |
Fair value of other liabilities acquired | 300 |  |  |
Allocation to non-deductible goodwill and intangible assets | $ 11,800 |  |  |
Jungwoo Metal Ind. Co., LTD [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Fair value of assets acquired |  | $ 49,000 |  |
Fair value of inventories acquired |  | 17,600 |  |
Fair value of accounts receivable acquired |  | 5,600 |  |
Fair value of property, plant and equipment acquired |  | 24,200 |  |
Fair value of other current assets acquired |  | 1,400 |  |
Fair value of deferred tax assets acquired |  | 200 |  |
Fair value of liabilities acquired |  | 17,900 |  |
Fair value of accounts payable acquired |  | 7,300 |  |
Fair value of other liabilities acquired |  | 600 |  |
Allocation to non-deductible goodwill and intangible assets |  | $ 1,000 |  |
Ownership percentage |  | 60.00% |  |
Payments to acquire interest in joint venture |  | $ 20,500 |  |
Fair value of long-term debt acquired |  | 8,700 |  |
Fair value of pension liabilities acquired |  | 800 |  |
Fair value of other current liabilities acquired |  | 500 |  |
Noncontrolling interests |  | $ 11,600 |  |

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