Acquisition - Summary of Goodwill and Other Intangible Assets (Detail) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Dec. 31, 2017 |
Jun. 30, 2017 |
Jan. 01, 2017 |
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| Goodwill and Intangible Assets Disclosure [Abstract] | ||||
| Goodwill | $ 4,186 | $ 0 | ||
| Other intangible assets, net of amortization | 1,541 | 0 | $ 0 | $ 0 |
| Total intangible assets | $ 5,727 | $ 0 |
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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