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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of restricted stock units issued and compensation expense
The following table summarizes RSUs issued and the compensation expense from continuing operations recorded for the years ended December 31, 2023, 2022, and 2021:
 RSUs (a)Weighted Average Fair ValueExpense
(Dollars in thousands, except per unit)202320222021
Directors:    
202034,986 10.29 — — 120 
202123,224 21.53 — 167 333 
202263,696 7.85 167 333 — 
202380,705 9.03 516 — — 
Employees:     
2018242,791 19.93 — — 142 
2019270,864 22.25 — 314 1,239 
2020
522,087 8.2291 741 1,093 
2021343,125 18.62910 1,294 1,892 
2022450,915 12.361,040 1,486 — 
2023926,010 7.091,628 — — 
Total  $4,352 $4,335 $4,819 
(a)     Represents number of awards originally issued.
Schedule of restricted stock unit activity
RSU activity for the year ended December 31, 2023 was as follows:
Number of SharesWeighted Average
Grant-Date
Fair Value
Non-vested at December 31, 2022671,584 $12.51 
Granted
1,006,715 7.25 
Vested
(364,241)11.34 
Forfeited
(94,737)10.87 
Non-vested at December 31, 20231,219,321 $8.63 
Schedule of Stock Appreciation Rights award activity
SARs activity for the year ended December 31, 2023 was as follows:
Number of SharesWeighted Average Exercise PriceAggregate Intrinsic Value (in millions) (b)
Outstanding, December 31, 20222,091,862 $14.68 $0.0 
Granted453,021 7.65 
Forfeited/Expired(241,865)17.37 
Outstanding, December 31, 2023
2,303,018 $13.01 $1.3 
(b)     Intrinsic value is defined as the difference between the current market value and the exercise price, for those SARs where the market price exceeds the exercise price.
Schedule of nonvested awards activity
The following table summarizes information related to outstanding and exercisable SARs at December 31, 2023:
SARs OutstandingSARs Exercisable
Range of Exercisable PricesVestedNon-vestedWeighted-Average Exercise Price per ShareWeighted-Average Remaining Contractual Life in YearsNumber ExercisableWeighted-Average Exercise Price per Share
$5.02 - $13.70
961,955 559,029 $9.42 6.23961,955 $9.85 
$16.53 - $22.70
569,276 39,275 18.65 3.72569,276 18.65 
$23.25 - $26.92
173,483 — 24.69 0.46173,483 24.69 
1,704,714 598,304 $13.01 5.131,704,714 $14.30 
Stock Appreciation Rights (SARs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of stock appreciation rights valuation assumptions
The table below summarizes the total SARs granted and the fair value of each grant estimated on the grant date using a Black-Scholes pricing model with the following assumptions:
Number of Shares Granted
Risk-free Interest RateDividend YieldExpected Life (Years)VolatilitySAR Grant PriceFair Value of SAR
March 2021 Grant184,6410.91 %— %6.061.9 %18.58 10.48 
March 2022 Grant312,9871.67 %— %6.060.3 %12.65 7.20 
September 2022 Grant10,0003.56 %— %6.060.6 %5.02 2.97 
October 2022 Grant10,0004.10 %— %6.061.3 %5.26 3.17 
December 2022 Grant10,0003.75 %— %6.062.4 %6.15 3.72 
March 2023 Grant404,5944.20 %— %6.062.6 %7.45 4.56 
May 2023 Grant
48,4273.48 %— %6.063.0 %9.31 5.64 
Schedule of weighted-average grant-date fair value of unvested options
Weighted-average grant date fair value of non-vested SARs for the year ended December 31, 2023 was as follows:
Number of SharesWeighted-Average Grant Date Fair Value
Non-vested shares, December 31, 2022470,471 $6.16 
Granted453,021 4.68 
Vested(276,566)5.19 
Forfeited(48,622)5.76 
Non-vested shares, December 31, 2023
598,304 $5.51 
Performance Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of stock appreciation rights valuation assumptions
Under the 2013 Plan, the Company granted the following shares presented in the table below and estimated the fair value of these grants on the grant date using a Monte Carlo pricing model with the following assumptions:
PSUs Issued
Number of Shares Granted
Risk-free Interest rateDividend YieldExpected Life (Years)Volatility
Fair Value per PSU
March 2021 Grant316,959 0.25 %— %2.8350.7 %$25.38 
March 2022 Grant500,624 1.59 %— %2.8350.4 %$16.54 
March 2023 Grant758,965 4.67 %— %2.8243.9 %$10.91 
May 2023 Grant29,337 3.75 %— %2.6541.5 %$15.24 
Schedule of weighted-average grant-date fair value of unvested options
A summary of the Company's non-vested PSU activity during the year ending December 31, 2023 was as follows:
Number of SharesWeighted-Average Grant Date Fair Value
Non-vested shares, December 31, 2022661,952 $19.94 
Granted788,302 11.07 
Vested, not issued (a)
(225,667)25.38 
Forfeited
(116,331)16.63 
Non-vested shares, December 31, 2023
1,108,256 $12.87 
(a) The measurement period for PSUs issued in 2021 ended on December 31, 2023 and these shares vested but will not be issued until the Board certifies the measurement period results in early 2024. A total of 0 shares are expected to be issued.