Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)
$ in Thousands
Cumulative Effect, Period of Adoption, Adjustment
Retained Earnings
Cumulative Effect, Period of Adoption, Adjustment
Common Stock
Treasury Stock at Cost
Additional Paid-in Capital
Retained Earnings
Total
Balance at Dec. 31, 2017     $ 386 $ (141,582) $ 830,600 $ 307,115 $ 996,519
Increase (Decrease) in Stockholders' Equity              
Net income           134,752 134,752
Share-based compensation         11,317   11,317
Issuance of restricted share awards under long-term equity incentive plan     1   (1)    
Repurchase of shares       (15,000)     (15,000)
Repurchase of shares pursuant to the settlement of ASR Agreement       (20,000) 20,000    
Repurchase of shares pursuant to ASR Agreement       (40,025) (10,000)   (50,025)
Shares withheld to pay taxes on employees' equity awards         (5,465)   (5,465)
Balance at Dec. 31, 2018     387 (216,607) 846,451 441,867 1,072,098
Increase (Decrease) in Stockholders' Equity              
Net income           190,995 190,995
Share-based compensation         13,658   13,658
Issuance of restricted share awards under long-term equity incentive plan     1   (1)    
Repurchase of shares       (60,886)     (60,886)
Repurchase of shares pursuant to the settlement of ASR Agreement       (10,000) 10,000    
Repurchase of shares pursuant to ASR Agreement       (42,525) (7,500)   (50,025)
Shares withheld to pay taxes on employees' equity awards         (12,951)   (12,951)
Balance at Dec. 31, 2019 $ (3,225) $ (3,225) 388 (330,018) 849,657 632,862 1,152,889
Increase (Decrease) in Stockholders' Equity              
Net income           247,023 247,023
Share-based compensation         14,752   14,752
Issuance of restricted share awards under long-term equity incentive plan     1   (1)    
Repurchase of shares       (49,151)     (49,151)
Repurchase of shares pursuant to the settlement of ASR Agreement       (7,500) 7,500    
Shares withheld to pay taxes on employees' equity awards         (14,932)   (14,932)
Shares issued upon exercise of stock options         1,438   1,438
Balance at Dec. 31, 2020     $ 389 $ (386,669) $ 858,414 $ 876,660 $ 1,348,794