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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity
The following table summarizes restricted stock activity for the years ended December 31, 2023, 2022, and 2021:
 Restricted Stock
Number of
Shares		Weighted
Average
Grant Date
Fair Value
Outstanding at December 31, 20202,724,724 $5.26 
Granted932,442 8.88 
Vested(1,179,857)5.53 
Canceled/Forfeited(332,505)5.83 
Outstanding at December 31, 20212,144,804 $6.60 
Granted2,056,121 4.07 
Vested(1,114,513)6.08 
Canceled/Forfeited(301,802)5.74 
Outstanding at December 31, 20222,784,610 $5.05 
Granted3,251,765 2.94 
Vested(1,381,246)5.09 
Canceled/Forfeited(680,710)3.66 
Outstanding at December 31, 20233,974,419 $3.54 
Share-based Payment Arrangement, Performance Shares, Outstanding Activity
The following table summarizes performance shares activity for the years ended December 31, 2023, 2022, and 2021:
 Performance Shares
Number of
Shares		Weighted
Average
Grant Date
Fair Value
Outstanding at December 31, 20202,335,102 $4.83 
Granted (1)
602,933 10.13 
Vested(143,312)7.39 
Canceled/Forfeited (1)
(404,710)6.12 
Outstanding at December 31, 20212,390,013 $5.80 
Granted (2)
1,325,418 4.53 
Vested(824,064)5.54 
Canceled/Forfeited (2)
(316,830)6.11 
Outstanding at December 31, 20222,574,537 $5.26 
Granted (3)
1,816,429 3.16 
Vested(566,891)4.00 
Canceled/Forfeited (3)
(664,165)4.32 
Outstanding at December 31, 20233,159,910 $4.52 
(1) Includes 1,421 additional shares granted and 141,894 shares cancelled in connection with the vesting of the 2018 award in 2021 due to above-target and below target performance, respectively, in accordance with the terms of the award.
(2) Includes 175,828 additional shares granted in connection with the vesting of the 2019 award in 2022 due to above-target in accordance with the terms of the award.
(3) Includes 26,200 additional shares granted and 468,393 shares cancelled in connection with the vesting of the 2020 award in 2023 due to above-target and below target performance in accordance with the terms of the award.
Schedule of Stock Options Roll Forward
The following table summarizes stock option activity for the years ended December 31, 2023, 2022, and 2021:
 Stock Options
SharesWeighted
Average
Exercise
Price
Outstanding at December 31, 2020222,273 $15.44 
Exercised(57,721)7.74 
Canceled/forfeited(16,455)18.45 
Expired(16,844)27.45 
Outstanding at December 31, 2021131,253 $16.91 
Canceled/forfeited(5,598)11.88 
Expired(31,667)25.19 
Outstanding at December 31, 202293,988 $14.41 
Canceled/forfeited— — 
Expired(39,658)23.90 
Outstanding at December 31, 202354,330 $7.49 
The following table summarizes outstanding stock options as of December 31, 2023:
Range of
Exercise Price		Number
Outstanding		Weighted Average
Exercise
Price		Weighted
Average
Remaining
Contractual
Life (Years)		Aggregate Intrinsic Value (in thousands)
$ 0.00-$10.0054,330 $7.49 2.4NA
$10.00-$20.00— $— 0.0NA
$20.00-$30.00— $— 0.0NA
Outstanding54,330 $7.49 2.4$— 
Vested and expected to vest54,330 $7.49 2.4$— 
Exercisable54,330 $7.49 2.4$—