Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Net Income Per Share

The following table presents the computation of basic and diluted net earnings (loss) per share for the years indicated:

	Year Ended December 31,
	2021		2020		2019
	(Dollars in thousands, except per share data)
Basic Earnings (Loss) Per Share:
Net earnings (loss)	$	606,959	$	(1,237,574)	$	468,636
Less: earnings allocated to unvested restricted stock(1)	(10,248)		(1,782)		(5,182)
Net earnings (loss) allocated to common shares	$	596,711	$	(1,239,356)	$	463,454
Weighted-average basic shares and unvested restricted stock outstanding	119,349		118,463		120,468
Less: weighted-average unvested restricted stock outstanding	(2,255)		(1,610)		(1,502)
Weighted-average basic shares outstanding	117,094		116,853		118,966
Basic earnings (loss) per share	$	5.10	$	(10.61)	$	3.90
Diluted Earnings (Loss) Per Share:
Net earnings (loss) allocated to common shares	$	596,711	$	(1,239,356)	$	463,454
Weighted-average diluted shares outstanding	117,094		116,853		118,966
Diluted earnings (loss) per share	$	5.10	$	(10.61)	$	3.90

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(1)    Represents cash dividends paid to holders of unvested restricted stock, net of forfeitures, plus undistributed earnings amounts available to holders of unvested restricted stock, if any.