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Commitments and Contingencies (Details) - USD ($) | Feb. 28, 2017 | Sep. 30, 2019 | Dec. 31, 2018
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Business Acquisition [Line Items] |  |  |
Loss contingency accrual |  | $ 0 | $ 0
UniRush, LLC |  |  |
Business Acquisition [Line Items] |  |  |
Contingent consideration, earn-out payable | $ 20,000,000 |  |
Contingent consideration, earn-out period | 5 years |  |

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- Definition Business Combination, Contingent Consideration, Earn-out Payable + References No definition available. + Details
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- Definition Business Combination, Contingent Consideration, Earn-out Period + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
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- Details
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