Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)
$ in Thousands
Common Stock
Treasury Stock at Cost
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive (Loss) Income
Total
Balance at Dec. 31, 2020 $ 389 $ (386,669) $ 858,414 $ 876,660   $ 1,348,794
Increase (Decrease) in Stockholders' Equity            
Net income       59,842   59,842
Share-based compensation     3,111     3,111
Issuance of restricted share awards under long-term equity incentive plan 1   (1)      
Repurchase of shares   (9,856)       (9,856)
Shares withheld to pay taxes on employees' equity awards     (11,480)     (11,480)
Shares issued upon exercise of stock options     5,952     5,952
Balance at Mar. 31, 2021 390 (396,525) 855,996 936,502   1,396,363
Balance at Dec. 31, 2020 389 (386,669) 858,414 876,660   1,348,794
Increase (Decrease) in Stockholders' Equity            
Net income           245,658
Balance at Sep. 30, 2021 391 (422,225) 861,228 1,122,317   1,561,711
Balance at Mar. 31, 2021 390 (396,525) 855,996 936,502   1,396,363
Increase (Decrease) in Stockholders' Equity            
Net income       90,380   90,380
Share-based compensation     2,266     2,266
Repurchase of shares   (14,182)       (14,182)
Shares withheld to pay taxes on employees' equity awards     (11)     (11)
Balance at Jun. 30, 2021 390 (410,707) 858,251 1,026,882   1,474,816
Increase (Decrease) in Stockholders' Equity            
Net income       95,435   95,435
Share-based compensation     2,998     2,998
Issuance of restricted share awards under long-term equity incentive plan 1   (1)      
Repurchase of shares   (11,518)       (11,518)
Shares withheld to pay taxes on employees' equity awards     (20)     (20)
Balance at Sep. 30, 2021 391 (422,225) 861,228 1,122,317   1,561,711
Balance at Dec. 31, 2021 391 (431,030) 873,031 1,200,676 $ (6,634) 1,636,434
Increase (Decrease) in Stockholders' Equity            
Net income       114,711   114,711
Share-based compensation     3,727     3,727
Issuance of restricted share awards under long-term equity incentive plan 2   (2)      
Repurchase of shares   (50,000)       (50,000)
Shares withheld to pay taxes on employees' equity awards   (11,658)       (11,658)
Shares issued upon exercise of stock options     808     808
Other comprehensive income, net of tax         3,218 3,218
Balance at Mar. 31, 2022 393 (492,688) 877,564 1,315,387 (3,416) 1,697,240
Balance at Dec. 31, 2021 391 (431,030) 873,031 1,200,676 (6,634) 1,636,434
Increase (Decrease) in Stockholders' Equity            
Net income           412,156
Balance at Sep. 30, 2022 393 (642,746) 884,729 1,612,830 (20,767) 1,834,439
Balance at Mar. 31, 2022 393 (492,688) 877,564 1,315,387 (3,416) 1,697,240
Increase (Decrease) in Stockholders' Equity            
Net income       143,697   143,697
Share-based compensation     3,334     3,334
Repurchase of shares pursuant to ASR Agreement   (80,050) (20,000)     (100,050)
Shares withheld to pay taxes on employees' equity awards   (9)       (9)
Shares issued upon exercise of stock options     644     644
Other comprehensive income, net of tax         (2,193) (2,193)
Balance at Jun. 30, 2022 393 (572,747) 861,542 1,459,084 (5,609) 1,742,663
Increase (Decrease) in Stockholders' Equity            
Net income       153,746   153,746
Share-based compensation     2,611     2,611
Repurchase of shares pursuant to the settlement of ASR Agreement   (20,000) 20,000      
Repurchase of shares   (49,999)       (49,999)
Shares issued upon exercise of stock options     576     576
Other comprehensive income, net of tax         (15,158) (15,158)
Balance at Sep. 30, 2022 $ 393 $ (642,746) $ 884,729 $ 1,612,830 $ (20,767) $ 1,834,439