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Share-Based Compensation Plans (Schedule of Stock Option Activity) (Details)
 6 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
shares
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Options Outstanding, Beginning Balance | shares 5,242,916
Options Granted | shares 495,564
Options Forfeited | shares (242,539)
Options Expired | shares (253,738)
Options Outstanding, Ending Balance | shares 5,242,203
Options Vested or expected to vest | shares 5,242,203
Options Exercisable | shares 2,741,527
Options Outstanding, Weighted Average Exercise Price, Beginning Balance | $ / shares $ 28.76
Options Granted, Weighted Average Exercise Price | $ / shares 3.05
Options Forfeited, Weighted Average Exercise Price | $ / shares 10.45
Options Expired, Weighted Average Exercise Price | $ / shares 56.68
Options Outstanding, Weighted Average Exercise Price, Ending Balance | $ / shares 25.76
Options Vested or expected to vest, Weighted Average Exercise Price | $ / shares 25.76
Options Exercisable, Weighted Average Exercise Price | $ / shares $ 43.79
Options Outstanding, Weighted Average Remaining Contractual Term 7 years 9 months 29 days
Options Vested or expected to vest, Weighted Average Remaining Contractual Term 7 years 9 months 29 days
Options Exercisable, Weighted Average Remaining Contractual Term 6 years 6 months 14 days
Options Outstanding, Aggregate Intrinsic Value | $ $ 4,044,166
Options Vested or expected to vest, Aggregate Intrinsic Value | $ 4,044,166
Options Exercisable, Aggregate Intrinsic Value | $ $ 317,505