| Earnings Per Share [Text Block] |
16.  Weighted Average Shares Outstanding and Net Income Per Share
The following table presents a reconciliation of the weighted average shares of common stock used in calculating basic and diluted net income per share as well as the calculation of basic and diluted net income per share:
| | | Three Months Ended September 30, | | | Nine Months Ended September 30, | |
| (in thousands, except per share amounts) | | 2022 | | | 2021 | | | 2022 | | | 2021 | |
| Numerator | | | | | | | | | | | | | | | | |
| Net income attributable to common shareholders for basic earnings per share | | $ | 73,393 | | | $ | 35,043 | | | $ | 77,605 | | | $ | 23,309 | |
| Add back: Interest expense related to 2.75% Convertible Notes | | | 1,473 | | | | - | | | | 4,418 | | | | - | |
| Net income attributable to common shareholders for diluted earnings per share | | $ | 74,866 | | | $ | 35,043 | | | $ | 82,023 | | | $ | 23,309 | |
| Denominator | | | | | | | | | | | | | | | | |
| Weighted average common shares outstanding, basic | | | 43,973 | | | | 45,821 | | | | 44,739 | | | | 45,773 | |
| Add: Dilutive effect of RSUs | | | 581 | | | | 563 | | | | 565 | | | | 523 | |
| Add: Dilutive effect of 2.75% Convertible Notes | | | 7,309 | | | | 1,522 | | | | 7,309 | | | | 1,226 | |
| Weighted average common shares outstanding, diluted | | | 51,863 | | | | 47,906 | | | | 52,613 | | | | 47,522 | |
| Net income per share, basic | | $ | 1.67 | | | $ | 0.76 | | | $ | 1.73 | | | $ | 0.51 | |
| Net income per share, diluted | | $ | 1.44 | | | $ | 0.73 | | | $ | 1.56 | | | $ | 0.49 | |
Beginning in 2022, with the adoption of ASU 2020-06, we have applied the if-converted method for calculating diluted earnings per share (see Note 2).
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