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Net Income (Loss) Per Share | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Net Income (Loss) Per Share | 10. Net Income (Loss) P er Share Basic net income (loss) per share is computed by dividing distributed and undistributed net income (loss) allocable to common shares by the weighted-average number of common shares outstanding during the applicable period. The basic weighted-average number of common shares outstanding during the period excludes non-vested share-based payment awards. Diluted net income (loss) per share was calculated under the treasury stock method for the quarters and nine months ended September 30, 2022 and September 30, 2021, which in both periods was more dilutive than the two-class method. The following table sets forth the computation of basic and diluted net income (loss) per share (in millions of dollars, except share and per share amounts):
|  | Quarter Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 2.5 |  |  | $ | (2.3 | ) |  | $ | (3.2 | ) |  | $ | (20.2 | )
Denominator – Weighted-average common shares outstanding (in thousands): |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 15,926 |  |  |  | 15,852 |  |  |  | 15,897 |  |  |  | 15,831 |
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares 1 |  |  | 103 |  |  |  | — |  |  |  | — |  |  |  | — |
Diluted |  |  | 16,029 |  |  |  | 15,852 |  |  |  | 15,897 |  |  |  | 15,831 |
Net income (loss) per common share, Basic: |  | $ | 0.16 |  |  | $ | (0.14 | ) |  | $ | (0.20 | ) |  | $ | (1.28 | )
Net income (loss) per common share, Diluted: |  | $ | 0.16 |  |  | $ | (0.14 | ) |  | $ | (0.20 | ) |  | $ | (1.28 | )
1 Quantities in the following discussion are denoted in whole shares. For the quarter ended September 30, 2022, approximately 36,000 shares were excluded from the weighted-average diluted shares computation as their inclusion would have been anti‑dilutive. For the quarter ended September 30, 2021 and the nine months ended September 30, 2022 and September 30, 2021, approximately 210,000, 141,000 and 198,000 shares, respectively, were excluded from the computation of net loss per share as their inclusion would have been anti‑dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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