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Earnings Per Common Share And Share Awards (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Computation Of Basic And Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share for the three-month period ended March 31:
| Three Months Ended March 31,
(in thousands, except per share amounts) | 2018 |  | 2017
Net income attributable to the Company | $ | 4,176 |  |  | $ | 4,476 |
Weighted average common shares outstanding – Basic | 1,886 |  |  | 1,886 |
Incremental shares outstanding assuming the exercise of dilutive SARs (share-settled) | 11 |  |  | 9 |
Weighted average common shares outstanding – Diluted | 1,897 |  |  | 1,895 |
Basic earnings per common share | $ | 2.21 |  |  | $ | 2.37 |
Diluted earnings per common share | $ | 2.20 |  |  | $ | 2.36 |
Summary Of Share-Based Award Transactions | A summary of share-based award transactions for all share-based award plans follows:
(in thousands, except weighted average exercise price and average remaining contractual term) | Number Of Shares |  | Weighted Average Exercise Price |  | Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value
Outstanding as of January 1, 2017 | 25 |  |  | $ | 3.85 |  |  | 3.85 |  | $ | 837 |
SARs granted | 4 |  |  | 93.87 |  |  |  |  |  |
SARs exercised | (4 | ) |  | 32.00 |  |  |  |  |  |
Outstanding as of December 31, 2017 | 25 |  |  | $ | 65.85 |  |  | 3.85 |  | $ | 837 |
SARs granted | — |  |  | — |  |  |  |  |  |
SARs exercised | (1 | ) |  | 41.50 |  |  |  |  |  |
Outstanding as of March 31, 2018 | 24 |  |  | $ | 95.56 |  |  | 3.88 |  | $ | 2,504 |
Exercisable as of March 31, 2018 | 24 |  |  | $ | 95.56 |  |  | 3.88 |  | $ | 2,504 |
Unvested as of March 31, 2018 | — |  |  | $ | — |  |  | 0.00 |  | $ | — |

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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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- Definition Tabular disclosure for share-based compensation plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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