Summarized quarterly financial data for 2019 and 2018 is as follows ($ in thousands, except per share data):


	Three Months Ended
	December 31, 2019		September 30, 2019		June 30, 2019		March 31, 2019
Net interest income	$	33,797	$	32,445	$	33,887	$	29,412
Total other revenue		62,365		62,558		50,072		44,848
Total other expenses		41,670		48,882		45,471		46,287
Income before extinguishment of debt, income from equity affiliates and income taxes		54,492		46,121		38,488		27,973
Loss on extinguishment of debt		(7,311)		—		—		(128)
Income from equity affiliates		1,502		3,718		3,264		2,151
(Provision for) benefit from income taxes		(4,072)		(6,623)		(4,350)		10
Net income		44,611		43,216		37,402		30,006
Preferred stock dividends		1,888		1,888		1,888		1,888
Net income attributable to noncontrolling interest		7,181		7,363		6,598		5,468
Net income attributable to common stockholders	$	35,542	$	33,965	$	28,916	$	22,650
Basic earnings per common share (1)	$	0.35	$	0.36	$	0.32	$	0.27
Diluted earnings per common share (1)	$	0.34	$	0.35	$	0.31	$	0.26


	Three Months Ended
	December 31, 2018		September 30, 2018		June 30, 2018		March 31, 2018
Net interest income	$	30,361	$	27,952	$	21,411	$	18,225
Total other revenue		77,464		55,580		46,923		53,162
Total other expenses		50,255		34,739		40,610		43,849
Income before extinguishment of debt, income from equity affiliates and income taxes		57,570		48,793		27,724		27,538
Loss on extinguishment of debt		(82)		(4,960)		—		—
Income (loss) from equity affiliates		91		(1,028)		1,387		746
(Provision for) benefit from income taxes		(8,635)		(5,381)		(4,499)		8,784
Net income		48,944		37,424		24,612		37,068
Preferred stock dividends		1,888		1,888		1,888		1,888
Net income attributable to noncontrolling interest		9,838		7,799		5,557		8,991
Net income attributable to common stockholders	$	37,218	$	27,737	$	17,167	$	26,189
Basic earnings per common share (1)	$	0.48	$	0.37	$	0.26	$	0.42
Diluted earnings per common share (1)	$	0.47	$	0.36	$	0.25	$	0.42

(1)

The sum of the quarterly amounts may not equal amounts reported for year-to-date periods, due to the effects of rounding for each period.