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Net Income Per Share (Tables)
12 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
Schedule of Net Income Per Share
 Year Ended 
December 31,
20202019
Numerator (in millions):
Net income (loss)$54.4 $(16.5)
Preferred stock dividends - undeclared and cumulative6.7 7.8 
Distributed earnings allocable to retired preferred shares41.9 $— 
Net income (loss) allocable to common stockholders$5.8 $(24.3)
Denominator (in thousands):
Average common shares outstanding - basic9,825 9,566 
Potentially dilutive shares related to stock options and restricted stock units (a)
298 — 
Average common shares outstanding - diluted10,123 9,566 
Net income (loss) per common share (in dollars):
Basic$0.59 $(2.54)
Diluted$0.57 $(2.54)
(a) Common stock equivalents excluded from the diluted calculation as a result of a net loss in the period (in thousands)
— 67 
Options outstanding and considered anti-dilutive as their exercise price exceeded the average share market price (in thousands)
— 352