Acquisitions - Chieftain Acquisition Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||||||
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Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
[2] | ||||||
| Business Acquisition [Line Items] | |||||||||
| Cash paid to acquire a business | $ 20,824 | $ 42,008 | [1] | $ 0 | |||||
| Intercompany elimination | Chieftain Acquisition | |||||||||
| Business Acquisition [Line Items] | |||||||||
| Transaction related costs expensed | $ 800 | ||||||||
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- Definition Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. 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 cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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