STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2022

The following table summarizes share repurchase activity for the program for the years ended December 31, 2022 and 2021:


	Year Ended December 31,
(Dollars in thousands)	2022		2021
Amount available for repurchase — beginning of period(1)	$	230,413	$	86,831
Additional amount authorized for repurchase(2)	500,000		500,000
Unused amount as part of authorization renewal(3)	(75,000)		(74,998)
Amount repurchased at cost, 14,568,364 and 9,918,104 shares as of December 31, 2022 and December 31, 2021, respectively	(376,275)		(281,420)
Amount available for repurchase — end of period	$	279,138	$	230,413

(1) Represents the amount available for repurchase as of January 1 for the years provided, adjusted for previously expired share repurchase authorizations.

(2) Amount in 2022 includes a $500.0 million new authorization announced on May 31, 2022. Amount in 2021 includes a $250.0 million renewal announced on each June 1, 2021 and December 13, 2021.

(3)Amount represents the unused value of the repurchase authorization from December 31, 2021, which was cancelled when the May 31, 2022 authorization was announced. Amount represents the unused value of the repurchase authorization from June 1, 2021, which was cancelled when the December 31, 2021 authorization was announced.