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Earnings per Share | 12 Months Ended
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Dec. 31, 2017
Earnings per Share [Abstract] |
Earnings per Share | Note N – Earnings per Share ﻿ Net loss was used as the numerator in computing both basic and diluted income per Common share for each of the three years ended December 31, 2017. The following table reconciles the weighted-average shares outstanding used for these computations. ﻿ ﻿
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﻿(Weighted-average shares) |  | 2017 |  | 2016 |  | 2015
﻿Basic method |  | 172,524,061 |  | 172,173,012 |  | 174,351,227
﻿Dilutive stock options 1 |  | – |  | – |  | –
﻿ Diluted method |  | 172,524,061 |  | 172,173,012 |  | 174,351,227
﻿ 1 Due to a net loss recognized by the Company for the years ended December 31, 2017, 2016 and 2015, no unvested stock awards were included in the computation of diluted earnings per share because the effect would have been antidilutive. ﻿ The following table reflects certain options to purchase shares of common stock that were outstanding during the three years ended December 31, 2017, but were not included in the computation of dilutive earnings per share because the incremental shares from the assumed conversion were antidilutive. ﻿
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﻿ |  | 2017 |  | 2016 |  | 2015
﻿Antidilutive stock options excluded from diluted shares |  | 4,901,269 |  | 5,757,435 |  | 5,443,288
﻿Weighted average price of these options |  | $45.74 |  | $48.46 |  | $52.93
﻿ ﻿

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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