Merger and Acquisition - Additional Information (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Feb. 10, 2017 |
Apr. 09, 2016 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Business Acquisition [Line Items] | ||||||||||||||
| Goodwill | $ 77,592,000 | |||||||||||||
| Goodwill deductible for income tax purposes | 0 | |||||||||||||
| Goodwill impairment | $ 0 | $ 77,592,000 | $ 0 | |||||||||||
| Equity consideration valued | $ 87,869,000 | |||||||||||||
| Net loss | $ (31,516,000) | $ (33,191,000) | $ (35,854,000) | $ (25,184,000) | $ (34,723,000) | $ (22,864,000) | $ (32,523,000) | $ (141,349,000) | $ (125,745,000) | $ (231,459,000) | $ (96,655,000) | |||
| Parallax Services | ||||||||||||||
| Business Acquisition [Line Items] | ||||||||||||||
| Equity consideration valued | $ 1,000,000 | |||||||||||||
| Net loss | $ 800,000 | |||||||||||||
| X | ||||||||||
- 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 amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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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- Definition Amount of loss from the write-down of an asset representing the 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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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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