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Acquisition - Schedule of Business Acquisition (Details) - USD ($) $ in Thousands | Jan. 10, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill |  | $ 276,450 | $ 198,622 | $ 198,622
First Choice Aerospace |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Accounts receivable | $ 7,295 |  |  |
Unbilled receivables | 431 |  |  |
Inventories | 8,016 |  |  |
Prepaid expenses and other current assets | 766 |  |  |
Property and equipment | 4,521 |  |  |
Goodwill | 77,828 |  |  |
Operating lease right-of-use assets | 2,594 |  |  |
Other assets | 333 |  |  |
Other current liabilities | (6,576) |  |  |
Long-term operating lease liabilities | (2,127) |  |  |
Assets acquired and liabilities assumed, net | 149,681 |  |  |
Cash consideration | 113,181 |  |  |
Acquisition date estimated fair value of earn-out obligation | 34,800 |  |  |
Section 338(h)(10) election | 1,700 |  |  |
Total | 149,681 |  |  |
Customer-Related Intangible Assets | First Choice Aerospace |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangibles - trade name | 54,500 |  |  |
Trade Names | First Choice Aerospace |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangibles - trade name | $ 2,100 |  |  |

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