Earnings Per Share - Additional Information (Detail) - shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded from computation of earnings per share | 5,598,000 | 398,000 | 5,598,000 | 398,000 |
| Preferred Shares [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded from computation of earnings per share | 322,000 | 658,000 | 322,000 | 658,000 |
| In The Money Warrants [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded from computation of earnings per share | 93,000 | 1,183,000 | 93,000 | 1,183,000 |