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Stockholders' Equity (Summary of Nonvested Options) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Options
Nonvested at beginning of period	2,378,453
Options granted	700,601
Options vested	(927,850)
Options forfeited	(1,601)
Nonvested at end of period	2,149,603
Weighted-Average Grant Date Fair Value
Nonvested at beginning of period (in dollars per share)	$ 9.48
Options granted (in dollars per share)	16.67	$ 15.06
Options vested (in dollars per share)	8.17
Options forfeited (in dollars per share)	13.96
Nonvested at end of period (in dollars per share)	$ 12.39
Employee Stock Option [Member]
Weighted-Average Grant Date Fair Value
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 21.4
Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	3 years 1 month 6 days

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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-Publisher FASB
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Gross number of share options (or share units) granted during the period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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