Net Loss Per Share (Tables)
|12 Months Ended|
Dec. 31, 2018
|Earnings Per Share [Abstract]|
|Summary of Basic and Diluted Earnings Per Share||
Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef