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Earnings per Share (EPS) (Tables)
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
Schedule of Calculation of Numerator and Denominator in Earnings Per Share
Three Months Ended September 30,Nine Months Ended September 30,
2020201920202019
Numerator:    
Income (loss) from continuing operations$10,773 $5,345 $(208,071)$32,112 
Income (loss) from discontinued operations, net of tax616 (8,470)7,648 (14,199)
Net income (loss) (numerator for diluted EPS)11,389 (3,125)(200,423)17,913 
Less: Preference stock dividend —  
Income (loss) attributable to common stockholders (numerator for basic EPS)$11,389 $(3,125)$(200,423)$17,905 
Denominator:    
Weighted-average shares used in basic EPS171,828 170,326 171,388 178,048 
Dilutive effect of common stock equivalents (1)
2,876 875  1,048 
Weighted-average shares used in diluted EPS174,704 171,201 171,388 179,096 
Basic earnings (loss) per share (2):
    
Continuing operations$0.06 $0.03 $(1.21)$0.18 
Discontinued operations (0.05)0.04 (0.08)
Net income (loss)$0.07 $(0.02)$(1.17)$0.10 
Diluted earnings (loss) per share (2):
Continuing operations$0.06 $0.03 $(1.21)$0.18 
Discontinued operations (0.05)0.04 (0.08)
Net income (loss)$0.07 $(0.02)$(1.17)$0.10 
Common stock equivalents excluded from calculation of diluted earnings per share because their impact would be anti-dilutive:
14,828 16,182 15,855 16,166 
(1)     Dilutive effect of common stock equivalents for the nine months ended September 30, 2020 was 1,604 shares; however, this amount was not included in the calculation of diluted earnings per share as the impact would have been anti-dilutive.
(2)     The sum of the earnings per share amounts may not equal the totals due to rounding.