Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Common Share [Abstract]

Schedule Of Net Income (Loss) Per Common Share

		Three Months Ended						Six Months Ended
		June 30,						June 30,
(Dollars in thousands, except per share amounts)		2020			2019			2020			2019
Net income (loss) per share:
	Numerator
	Net income (loss)	$	190,880		$	332,868		$	207,492		$	687,419
	Less: dividends declared-common shares and nonvested common shares		(61,927)			(56,999)			(125,205)			(114,136)
	Undistributed earnings		128,953			275,869			82,287			573,283
	Percentage allocated to common shareholders (1)		98.7	%		98.9	%		98.7	%		98.9	%
			127,233			272,750			81,224			567,037
	Add: dividends declared-common shareholders		61,148			56,394			123,637			112,925
	Numerator for basic and diluted earnings per common share	$	188,381		$	329,144		$	204,861		$	679,962
	Denominator
	Denominator for basic earnings per weighted-average common shares		39,449			40,277			39,827			40,291
	Effect of dilutive securities:
	Options		69			126			81			134
	Denominator for diluted earnings per adjusted weighted-average common shares		39,519			40,404			39,908			40,425
	Per common share net income (loss)
	Basic	$	4.78		$	8.17		$	5.14		$	16.88
	Diluted	$	4.77		$	8.15		$	5.13		$	16.82
(1)	Basic weighted-average common shares outstanding		39,449			40,277			39,827			40,291
	Basic weighted-average common shares outstanding and nonvested common shares expected to vest		39,983			40,738			40,348			40,735
	Percentage allocated to common shareholders		98.7	%		98.9	%		98.7	%		98.9	%
(Some amounts may not reconcile due to rounding.)