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Stockholders' Equity (Summary Of Anti-Dilutive Options Excluded) (Details) - $ / shares | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Stockholders' Equity Note [Abstract] |  |  |
Options to purchase shares of common stock (in shares) | 678,310 | 846,041 | 0
Weighted average exercise prices of options (in dollars per share) | $ 48.00 | $ 38.00 | $ 0

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- Definition Antidilutive Securities Excluded from Computation of Earnings Per Share, Weighted Average Exercise Price + References No definition available. + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- References No definition available. + Details
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