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Earnings Per Share | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | 12. Earnings Per Share The following table sets forth the computations of basic and diluted earnings per share:
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | Year ended December 31,
﻿ | 2018 |  | 2017 |  | 2016
﻿Net income | $ | 176,553 |  | $ | 176,253 |  | $ | 22,938
﻿Shares: |  |  |  |  |  |  |  |
﻿Weighted-average number of common shares outstanding |  | 27,823 |  |  | 28,491 |  |  | 29,265
﻿Dilutive stock awards |  | 139 |  |  | 70 |  |  | 505
﻿Diluted weighted-average number of common shares outstanding |  | 27,962 |  |  | 28,561 |  |  | 29,770
﻿Basic earnings per share | $ | 6.35 |  | $ | 6.19 |  | $ | 0.78
﻿Diluted earnings per share | $ | 6.31 |  | $ | 6.17 |  | $ | 0.77
﻿ The following stock awards were excluded from the calculation of diluted EPS: ﻿
﻿ |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |
﻿ | Year ended December 31,
﻿ | 2018 |  | 2017 |  | 2016
﻿Stock awards subject to performance conditions |  | 95 |  |  | 217 |  |  | 263
﻿Stock awards that were antidilutive |  | 1,741 |  |  | 1,695 |  |  | 1,316
﻿Total stock awards excluded from diluted earnings per share |  | 1,836 |  |  | 1,912 |  |  | 1,579

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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