Acquisitions - Pro Forma Information High Power Acquisition (Details) - Higher Power - USD ($) |
12 Months Ended | |
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Dec. 31, 2018 |
Dec. 31, 2017 |
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| Business Acquisition [Line Items] | ||
| Revenues | $ 220,281,000 | $ 39,571,000 |
| Net income | (5,868,000) | 5,127,000 |
| Depreciation | 7,100,000 | 2,000,000 |
| Revenues | 42,343,000 | |
| Net income (loss) | 5,004,000 | |
| Intercompany elimination | ||
| Business Acquisition [Line Items] | ||
| Revenues | $ 191,200,000 | $ 27,400,000 |
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- Definition Business Combination, Pro Forma Information, Depreciation of Acquiree since Acquisition Date, Actual No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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