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v3.19.3.a.u2

Acquisition and Divestiture Activities (Details) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 03, 2019 | Jun. 11, 2018 | Feb. 08, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |
Acquisition of business, net of cash acquired |  |  |  | $ 11,862 | $ 14,880 | $ 0
Acquisition of noncontrolling interests |  |  |  |  |  | 4,100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] |  |  |  |  |  |
Goodwill |  |  |  | $ 150,642 | 147,480 | $ 142,742
Bi-Metallix [Member] |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |
Business acquisition, effective date of acquisition |  |  |  | Jan. 03, 2019 |  |
Business acquisition, name of acquired entity | Bi-Metallix, Inc. |  |  |  |  |
Acquisition of business, net of cash acquired | $ 11,862 |  |  |  |  |
Definite-lived intangible assets | 2,900 |  |  |  |  |
Goodwill related to acquisitions | $ 3,324 |  |  | $ 3,324 |  |
UltraSource [Member] |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |
Business acquisition, effective date of acquisition |  |  |  | Feb. 08, 2018 |  |
Business acquisition, name of acquired entity |  |  | UltraSource, Inc. |  |  |
Acquisition of business, net of cash acquired |  |  | $ 13,596 |  |  |
Definite-lived intangible assets |  |  | 6,500 |  |  |
Goodwill related to acquisitions |  |  | $ 4,227 |  | 4,227 |
EuroPower [Member] |  |  |  |  |  |
Business Acquisition, Equity Interests Issued or Issuable [Line Items] |  |  |  |  |  |
Business acquisition, effective date of acquisition |  |  |  | Jun. 11, 2018 |  |
Business acquisition, name of acquired entity |  | EuroPower Holdings Ltd. |  |  |  |
Acquisition of business, net of cash acquired |  | $ 2,939 |  |  |  |
Goodwill related to acquisitions |  | $ 1,068 |  |  | $ 1,068 |

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