Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

	Quarter Ended
(In thousands, except per share data)	Dec. 31, 2019		Sep. 30, 2019			Jun. 30, 2019		Mar. 31, 2019		Dec. 31, 2018		Sep. 30, 2018		Jun. 30, 2018		Mar. 31, 2018
Net interest income	$	408,753	$	371,793		$	254,057	$	254,429	$	253,153	$	253,502	$	254,751	$	247,089
Provision for credit losses	14,403		27,188			13,569		10,122		18,894		2,270		14,236		11,368
Net interest income after provision for credit losses	394,350		344,605			240,488		244,307		234,259		251,232		240,515		235,721
Noninterest income	158,052		94,258			109,718		103,504		123,868		112,064		110,151		108,314
Noninterest expense	416,571		425,620			236,849		253,075		249,958		246,423		272,039		245,980
Income before income tax expense (benefit)	135,831		13,243			113,357		94,736		108,169		116,873		78,627		98,055
Income tax expense (benefit)	21,375		(11,735		)	19,314		21,287		20,013		28,034		16,418		21,631
Income after income tax expense (benefit)	114,456		24,978			94,043		73,449		88,156		88,839		62,209		76,424
Income attributable to non-controlling interest	2,057		2,830			3,616		2,955		2,504		2,643		3,460		2,663
Net income attributable to TCF Financial Corporation	112,399		22,148			90,427		70,494		85,652		86,196		58,749		73,761
Preferred stock dividends	2,494		2,494			2,494		2,493		2,494		2,494		2,494		4,106
Impact of preferred stock redemption	—		—			—		—		—		—		—		3,481
Net income available to common shareholders	$	109,905	$	19,654		$	87,933	$	68,001	$	83,158	$	83,702	$	56,255	$	66,174
Earnings per common share:
Basic	$	0.72	$	0.15		$	1.07	$	0.83	$	1.00	$	1.00	$	0.67	$	0.77
Diluted	0.72		0.15			1.07		0.83		1.00		1.00		0.67		0.77