Shareholders' Equity (Deficit)	12 Months Ended
Dec. 31, 2019
Shareholders' Equity (Deficit)
Shareholders' Equity (Deficit)	Note S — Shareholders’ Equity (Deficit) Shareholder's Rights Plan On February 28, 2016, the Board of Directors declared a dividend of one preferred share purchase right (a “Right”) for each outstanding share of common stock, par value $0.01 per share (the “Common Stock”). The dividend was payable to the shareholders of record on March 10, 2016 (the “Record Date”). The Rights would not be exercisable until after the public announcement that a person or group of affiliated or associated persons has acquired or obtained the right or obligation to acquire beneficial ownership of 10% or more of our outstanding Common Stock (“Acquiring Person”) or following the commencement of a tender offer or exchange offer that, if consummated, would result in a person or group becoming an Acquiring Person. If a shareholder’s beneficial ownership of our Common Stock as of the time of the public announcement of the Rights Agreement and associated dividend declaration was at or above the applicable threshold, as defined by the Rights Agreement (including through entry into certain derivative positions), that shareholder’s then-existing ownership percentage would be grandfathered, but the rights would become exercisable if at any time after such announcement, the shareholder increases its ownership percentage. Once exercisable, each Right allowed its holder to purchase one one-thousandth of a share of Series A Junior Participating Preferred Stock, par value $0.01 per share (the “Preferred Stock”), for $65.00 (the “Purchase Price”), subject to adjustment. Prior to exercise, the Right did not give its holder any dividend, voting, or liquidation rights. The description and terms of the Rights were set forth in a Rights Agreement, dated as of February 28, 2016, between us and Computershare Inc., as the Rights Agent. The Rights had certain anti-takeover effects. The Rights would have caused a substantial dilution to any person or group that attempted to acquire us without the approval of our Board of Directors. As a result, the overall effect of the Rights may have been to render more difficult or discourage any attempt to acquire us even if such acquisition may be favorable to the interests of our shareholders. Because our Board of Directors could redeem the Rights and amend the Rights Agreement in any respect prior to a person or group becoming an Acquiring Person, the Rights should not interfere with a merger or other business combination approved by the Board of Directors. The Rights were originally set to expire on August 28, 2017. Rights Agreement Amendment On June 23, 2017, we entered into an amendment (the “Rights Agreement Amendment”) to the Rights Agreement to extend the “Final Expiration Date” under the Rights Agreement to December 31, 2018. Pursuant to the terms of the Rights Agreement as amended, we had the ability to redeem the rights prior to the “Final Expiration Date” or to further amend the Rights Agreement to provide for an earlier “Final Expiration Date”. The “Final Expiration Date” under the Rights Agreement was not extended in response to any specific takeover bid or other proposal to acquire control. The Rights Agreement expired on its terms on December 31, 2018 and is no longer of any force or effect.

Note S — Shareholders’ Equity (Deficit)

Shareholder's Rights Plan

On February 28, 2016, the Board of Directors declared a dividend of one preferred share purchase right (a “Right”) for each outstanding share of common stock, par value $0.01 per share (the “Common Stock”). The dividend was payable to the shareholders of record on March 10, 2016 (the “Record Date”). The Rights would not be exercisable until after the public announcement that a person or group of affiliated or associated persons has acquired or obtained the right or obligation to acquire beneficial ownership of 10% or more of our outstanding Common Stock (“Acquiring Person”) or following the commencement of a tender offer or exchange offer that, if consummated, would result in a person or group becoming an Acquiring Person. If a shareholder’s beneficial ownership of our Common Stock as of the time of the public announcement of the Rights Agreement and associated dividend declaration was at or above the applicable threshold, as defined by the Rights Agreement (including through entry into certain derivative positions), that shareholder’s then-existing ownership percentage would be grandfathered, but the rights would become exercisable if at any time after such announcement, the shareholder increases its ownership percentage.

Once exercisable, each Right allowed its holder to purchase one one-thousandth of a share of Series A Junior Participating Preferred Stock, par value $0.01 per share (the “Preferred Stock”), for $65.00 (the “Purchase Price”), subject to adjustment. Prior to exercise, the Right did not give its holder any dividend, voting, or liquidation rights. The description and terms of the Rights were set forth in a Rights Agreement, dated as of February 28, 2016, between us and Computershare Inc., as the Rights Agent.

The Rights had certain anti-takeover effects. The Rights would have caused a substantial dilution to any person or group that attempted to acquire us without the approval of our Board of Directors. As a result, the overall effect of the Rights may have been to render more difficult or discourage any attempt to acquire us even if such acquisition may be favorable to the interests of our shareholders. Because our Board of Directors could redeem the Rights and amend the Rights Agreement in any respect prior to a person or group becoming an Acquiring Person, the Rights should not interfere with a merger or other business combination approved by the Board of Directors. The Rights were originally set to expire on August 28, 2017.

Rights Agreement Amendment

On June 23, 2017, we entered into an amendment (the “Rights Agreement Amendment”) to the Rights Agreement to extend the “Final Expiration Date” under the Rights Agreement to December 31, 2018. Pursuant to the terms of the Rights Agreement as amended, we had the ability to redeem the rights prior to the “Final Expiration Date” or to further amend the Rights Agreement to provide for an earlier “Final Expiration Date”.

The “Final Expiration Date” under the Rights Agreement was not extended in response to any specific takeover bid or other proposal to acquire control.

The Rights Agreement expired on its terms on December 31, 2018 and is no longer of any force or effect.