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Acquisitions (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Business Acquisition [Line Items] |  |  |
Number of business acquisitions (in businesses) | 2 | 2 | 6
Payments to Acquire Businesses, Net of Cash Acquired | $ 68,557 | $ 27,188 | $ 1,561,737
Acquired Goodwill | 46,711 | 30,180 |
Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net |  |  | $ 1,554,448
Engineered Systems Segment [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Acquired Goodwill | 0 | 30,180 |
Fluids Segment [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Acquired Goodwill | 36,303 | 0 |
Refrigeration and Food Equipment Segment [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Acquired Goodwill | $ 10,408 | 0 |
Ettiingler [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Acquisition of 100 Percent, Voting Rights | 100.00% |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 53,218 |  |
Acquired Goodwill | 36,303 |  |
Acquired intangible assets, net | $ 19,907 |  |
Rosario [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Acquisition of 100 Percent, Voting Rights | 100.00% |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 15,339 |  |
Acquired Goodwill | 10,408 |  |
Acquired intangible assets, net | $ 4,149 |  |
2017 Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 34,300 |
Caldera Graphics [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | 32,857 |
Acquired Goodwill |  | 27,174 |
Acquired intangible assets, net |  | $ 8,169 |
Minimum [Member] | Ettiingler [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted average lives of finite-lived intangible assets acquired | 8 years |  |
Minimum [Member] | Rosario [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted average lives of finite-lived intangible assets acquired | 10 years |  |
Minimum [Member] | Caldera Graphics [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted average lives of finite-lived intangible assets acquired |  | 7 years |
Maximum [Member] | Ettiingler [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted average lives of finite-lived intangible assets acquired | 15 years |  |
Maximum [Member] | Caldera Graphics [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Weighted average lives of finite-lived intangible assets acquired |  | 15 years |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The net amount, measured at acquisition-date fair value, of all the assets acquired and liabilities assumed that arise from contingencies and were recognized by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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