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Stockholder's Equity (Summary Of Stock Option Plan Activity) (Details) (USD $) | 80 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2013 Stock Option Plan [Member] | Dec. 31, 2012 Stock Option Plan [Member] | Dec. 31, 2011 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |  |
Beginning Balance, Options Outstanding |  | 4,835,792 |  | 5,132,750 |  |  |
Granted, Options Outstanding | 8,100,000 | 205,000 |  | 1,235,000 |  |  |
Exercised, Options Outstanding |  | (389,162) |  | (1,305,708) |  |  |
Cancelled/Forfeited, Options Outstanding |  | (295,000) |  | (226,250) |  |  |
Ending Balance, Options Outstanding | 4,356,630 | 4,356,630 |  | 4,835,792 |  | 5,132,750 |
Exercisable, Options Outstanding | 1,442,380 | 1,442,380 |  | 1,168,792 |  |  |
Beginning Balance, Exercise Price |  | $ 32.51 | [1] | $ 24.92 | [1] |  |
Granted, Exercise Price |  | $ 54.00 | [1] | $ 54.00 | [1] |  |
Exercised, Exercise Price |  | $ 23.91 | [1] | $ 22.70 | [1] |  |
Cancelled/Forfeited, Exercise Price |  | $ 35.89 | [1] | $ 34.12 | [1] |  |
Ending Balance, Exercise Price |  | $ 34.06 | [1] | $ 32.51 | [1] | $ 24.92 | [1]
Exercisable, Exercise Price |  | $ 23.61 | [1] | $ 22.95 | [1] |  |
Beginning Balance, Outstanding, Remaining Life |  | 4 years 7 months 27 days |  | 5 years 4 months 24 days | [2] | 4 years 8 months 19 days | [2]
Granted, Remaining Life |  | 8 years 4 months 28 days | [2] | 8 years 4 months 28 days | [2] |  |
Ending Balance, Outstanding, Remaining Life |  | 4 years 7 months 27 days |  | 5 years 4 months 24 days | [2] | 4 years 8 months 19 days | [2]
Exercisable, Remaining Life |  | 2 years 8 months 26 days |  | 3 years 5 months 12 days |  |  |
[1] | Weighted-average exercise price
[2] | Weighted-average remaining contractual life in years

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + 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)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Net number of share options (or share units) granted during the period. + 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)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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