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Stockholder's Equity (Tables)
 12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Treasury Stock Activity The following represents the activity relating to the treasury stock held by the Company during the year ended December 31, 2022:
Treasury Stock SharesCost
(dollars in thousands)		Average Cost per Share
Balance outstanding at December 31, 202128,047,929 $547,112 $19.51 
Shares purchased for minimum tax withholding under the 2010 and 2020 Equity Plans or other similar transactions1,058,933 36,082 34.07 
Purchase of treasury stock1,069,002 31,078 29.07 
Balance outstanding at December 31, 202230,175,864 $614,272 $20.36