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Earnings Per Common Share (EPS) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share, Basic and Diluted [Abstract] |
Earnings Per Common Share (EPS) | 11.EARNINGS PER COMMON SHARE (EPS) The computation of weighted average shares outstanding and the basic and diluted earnings (loss) per common share for the following periods consisted of the following (in thousands, except per share amounts): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2020 | ​ | 2019 | ​ | 2018
Net income (loss) | ​ | $ | (9,843) | ​ | $ | 5,451 | ​ | $ | 42,017
Average common shares outstanding | ​ |  | 55,434 | ​ |  | 55,075 | ​ |  | 52,268
Basic EPS | ​ | $ | (0.18) | ​ | $ | 0.10 | ​ | $ | 0.80
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Average common shares outstanding | ​ | ​ | 55,434 | ​ | ​ | 55,075 | ​ | ​ | 52,268
Effect of dilutive stock options | ​ | ​ | — | ​ | ​ | 1,160 | ​ | ​ | 1,663
Total potential shares outstanding | ​ | ​ | 55,434 | ​ | ​ | 56,235 | ​ | ​ | 53,931
Diluted EPS | ​ | $ | (0.18) | ​ | $ | 0.10 | ​ | $ | 0.78
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity awards excluded as the impact was anti-dilutive (1) | ​ | ​ | 4,216 | ​ | ​ | 1,750 | ​ | ​ | 396
(1) | Does not reflect the impact of incremental repurchases under the treasury stock method.

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