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Business Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2018
Business Combinations [Abstract] |
Summary of purchase price allocation based on estimated fair values of acquired assets and liabilities as of the acquisition date | The following table summarizes the purchase price allocation based on the estimated fair values of the acquired assets as of the acquisition date (in thousands):
| Fair Value
Property, plant and equipment | $ | 14,929 |
Intangible assets | 3,839 |
Purchase price | $ | 18,768 |
Schedule of amount of finite life intangible assets, and their associated average useful lives | The amount of acquired finite-life intangible assets and their average useful lives were determined based on the period over which the assets are expected to contribute directly or indirectly to our future cash flows and consisted of the following (dollars in thousands):
| Amount |  | Average Useful Life
Contract-based intangible assets | $ | 3,839 |  |  | 2.3 years

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- Definition Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period. + 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) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + 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 -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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