Summary of Significant Accounting Policies (Tables) |
12 Months Ended | ||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||
| Summary of Property and Equipment Estimated Useful Lives | Depreciation and amortization expense is recognized using the straight-line method over the estimated useful life of each asset as follows:
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