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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
Basic And Diluted Earnings Per Share Three months ended Six months ended June 30, June 30, 2021 2020 2021 2020Net income$ 187,974 $ 8,175 $ 315,075 $ 84,563Shares: Weighted-average number of common shares outstanding (for basic calculation) 28,134 27,911 28,130 27,851Dilutive stock awards 367 422 412 477Weighted-average number of common shares outstanding (for diluted calculation) 28,501 28,333 28,542 28,328Basic earnings per share$ 6.68 $ 0.29 $ 11.20 $ 3.04Diluted earnings per share$ 6.60 $ 0.29 $ 11.04 $ 2.99
Stock Awards Excluded From The Calculation Of Diluted EPS

Three months ended

Six months ended

June 30,

June 30,

2021

2020

2021

2020

Stock awards subject to performance conditions

76

100

73

95

Stock awards that were antidilutive

76

117

62

110

Total stock awards excluded from diluted earnings per share

152

217

135

205