CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid in Capital | Accumulated Other Comprehensive Income | Retained Earnings |
Beginning balance, shares outstanding (in shares) at Dec. 31, 2021 | | 648,794,041 | | | |
Beginning balance at Dec. 31, 2021 | $ 524,298 | $ 648 | $ 302,866 | $ 0 | $ 220,784 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net income | 61,961 | | | | 61,961 |
Conversion of cash settled units to stock appreciation rights | 1,632 | | 1,632 | | |
Exercise of stock-settled stock appreciation rights (in shares) | | 117,180 | | | |
Exercise of stock-settled stock appreciation rights | 348 | | 348 | | |
Shares withheld and retired for taxes on exercise of stock settled appreciation rights (in shares) | | (55,244) | | | |
Shares withheld and retired for taxes on exercise of stock-settled stock appreciation rights | (920) | | (920) | | |
Share-based compensation expense | 1,696 | | 1,696 | | |
Ending balance, shares outstanding (in shares) at Mar. 31, 2022 | | 648,855,977 | | | |
Ending balance at Mar. 31, 2022 | 589,015 | $ 648 | 305,622 | 0 | 282,745 |
Beginning balance, shares outstanding (in shares) at Dec. 31, 2021 | | 648,794,041 | | | |
Beginning balance at Dec. 31, 2021 | 524,298 | $ 648 | 302,866 | 0 | 220,784 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net income | $ 149,676 | | | | |
Exercise of stock-settled stock appreciation rights (in shares) | 117,180 | | | | |
Shares withheld and retired for taxes on exercise of stock settled appreciation rights (in shares) | (55,244) | | | | |
Exercise of stock options (in shares) | 231,846 | | | | |
Unrealized (loss) gain on derivatives (net of taxes) | $ 0 | | | | |
Ending balance, shares outstanding (in shares) at Jun. 30, 2022 | | 649,087,823 | | | |
Ending balance at Jun. 30, 2022 | 679,197 | $ 649 | 308,088 | 0 | 370,460 |
Beginning balance, shares outstanding (in shares) at Mar. 31, 2022 | | 648,855,977 | | | |
Beginning balance at Mar. 31, 2022 | 589,015 | $ 648 | 305,622 | 0 | 282,745 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net income | 87,715 | | | | 87,715 |
Exercise of stock options (in shares) | | 231,846 | | | |
Exercise of stock options | 740 | $ 1 | 739 | | |
Share-based compensation expense | 1,727 | | 1,727 | | |
Unrealized (loss) gain on derivatives (net of taxes) | 0 | | | | |
Ending balance, shares outstanding (in shares) at Jun. 30, 2022 | | 649,087,823 | | | |
Ending balance at Jun. 30, 2022 | $ 679,197 | $ 649 | 308,088 | 0 | 370,460 |
Beginning balance, shares outstanding (in shares) at Dec. 31, 2022 | 650,091,380 | 650,091,380 | | | |
Beginning balance at Dec. 31, 2022 | $ 780,957 | $ 649 | 312,875 | 2,577 | 464,856 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net income | 20,964 | | | | 20,964 |
Exercise of stock-settled stock appreciation rights (in shares) | | 109,620 | | | |
Exercise of stock-settled stock appreciation rights | 326 | | 326 | | |
Shares withheld and retired for taxes on exercise of stock settled appreciation rights (in shares) | | (83,501) | | | |
Shares withheld and retired for taxes on exercise of stock-settled stock appreciation rights | (390) | | (390) | | |
Exercise of stock options (in shares) | | 3,659,267 | | | |
Exercise of stock options | 3,299 | $ 4 | 3,295 | | |
Share-based compensation expense | 2,018 | | 2,018 | | |
Unrealized (loss) gain on derivatives (net of taxes) | (557) | | | (557) | |
Ending balance, shares outstanding (in shares) at Mar. 31, 2023 | | 653,776,766 | | | |
Ending balance at Mar. 31, 2023 | $ 806,617 | $ 653 | 318,124 | 2,020 | 485,820 |
Beginning balance, shares outstanding (in shares) at Dec. 31, 2022 | 650,091,380 | 650,091,380 | | | |
Beginning balance at Dec. 31, 2022 | $ 780,957 | $ 649 | 312,875 | 2,577 | 464,856 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net income | $ 27,120 | | | | |
Exercise of stock-settled stock appreciation rights (in shares) | 109,620 | | | | |
Shares withheld and retired for taxes on exercise of stock settled appreciation rights (in shares) | (83,501) | | | | |
Exercise of stock options (in shares) | 4,413,328 | | | | |
Unrealized (loss) gain on derivatives (net of taxes) | $ 1,090 | | | | |
Ending balance, shares outstanding (in shares) at Jun. 30, 2023 | 654,530,828 | 654,530,828 | | | |
Ending balance at Jun. 30, 2023 | $ 817,852 | $ 654 | 321,555 | 3,667 | 491,976 |
Beginning balance, shares outstanding (in shares) at Mar. 31, 2023 | | 653,776,766 | | | |
Beginning balance at Mar. 31, 2023 | 806,617 | $ 653 | 318,124 | 2,020 | 485,820 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | |
Net income | 6,156 | | | | 6,156 |
Exercise of stock options (in shares) | | 754,062 | | | |
Exercise of stock options | 798 | $ 1 | 797 | | |
Share-based compensation expense | 2,634 | | 2,634 | | |
Unrealized (loss) gain on derivatives (net of taxes) | $ 1,647 | | | 1,647 | |
Ending balance, shares outstanding (in shares) at Jun. 30, 2023 | 654,530,828 | 654,530,828 | | | |
Ending balance at Jun. 30, 2023 | $ 817,852 | $ 654 | $ 321,555 | $ 3,667 | $ 491,976 |