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Earnings (Loss) Per Share (Narrative) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 17, 2017
Anti-dilutive shares excluded from calculation of earnings per share
Anti-dilutive shares excluded from calculation of earnings per share	2,818		2,306
1.375% Convertible senior notes due 2023 | Convertible senior notes
Anti-dilutive shares excluded from calculation of earnings per share
Initial conversion price of notes (in dollars per share)	$ 18.93	$ 18.93	$ 18.93	$ 18.93
Potential incremental common shares attributable to dilutive effect of contingently issuable shares		1,400
Potential cumulative common shares attributable to dilutive effect of conversion of convertible notes payable	500
Stock options
Anti-dilutive shares excluded from calculation of earnings per share
Anti-dilutive shares excluded from calculation of earnings per share	282		227

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The price per share of the conversion feature embedded in the debt instrument.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met.

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