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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Schedule Of Common Stock And Earnings Per Share |
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﻿ |  | Year Ended |
﻿ |  | 2014 |  | 2015 |  | 2016 |
﻿ |  |  |  |  |  |  |
﻿Net earnings available to common shareholders |  | $ 76,636 |  | $ 94,672 |  | $ 100,041 |
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﻿Weighted average common shares outstanding - basic |  | 26,443 |  | 25,460 |  | 24,185 |
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﻿Dilutive effect of in-the-money equity awards |  | 934 |  | 895 |  | 862 |
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﻿Weighted average common shares outstanding - diluted |  | 27,377 |  | 26,355 |  | 25,047 |
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﻿Earnings per common share from net earnings - basic |  | $ 2.90 |  | $ 3.72 |  | $ 4.14 |
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﻿Earnings per common share from net earnings - diluted |  | $ 2.80 |  | $ 3.59 |  | $ 3.99 |
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﻿Equity awards for the following shares were not included in the computation of diluted EPS due to the fact that |
﻿their effect would be anti-dilutive: |  |  |  |  |  |  |
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﻿ |  | Year Ended |
﻿ |  | 2014 |  | 2015 |  | 2016 |
﻿ |  |  |  |  |  |  |
﻿ |  | 574 |  | 786 |  | 2,242 |
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﻿

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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