Consolidated Statements of Changes in Shareholders' Equity - Unaudited - USD ($) $ in Thousands		Total	Preferred Stock	Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance, preferred stock (shares) at Dec. 31, 2020			9,000,000
Beginning balance at Dec. 31, 2020		$ 1,117,086	$ 217,471	$ 32,986	$ 455,592	$ 438,581	$ (5,764)	$ (21,780)
Beginning balance, common stock (shares) at Dec. 31, 2020				31,705,088
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		36,595				36,595
Other comprehensive income (loss)		11,155					11,155
Preferred stock dividends	[1]	(3,391)				(3,391)
Sale of non-controlling interest in BMT	[2]	31,893			31,893
Distribution of investment in BM Technologies	[3]	(32,983)				(32,983)
Restricted stock awards to certain BMT team members	[4]	19,592			19,592
Share-based compensation expense		3,609			3,609
Issuance of common stock under share-based compensation arrangements (shares)				533,674
Issuance of common stock under share-based compensation arrangements		5,165		$ 533	4,632
Ending balance, preferred stock (shares) at Mar. 31, 2021			9,000,000
Ending balance at Mar. 31, 2021		$ 1,188,721	$ 217,471	$ 33,519	515,318	438,802	5,391	(21,780)
Ending balance, common stock (shares) at Mar. 31, 2021				32,238,762
Beginning balance, preferred stock (shares) at Dec. 31, 2021		5,700,000	5,700,000
Beginning balance at Dec. 31, 2021		$ 1,366,217	$ 137,794	$ 34,722	542,391	705,732	(4,980)	(49,442)
Beginning balance, common stock (shares) at Dec. 31, 2021		32,913,267		32,913,267
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 76,761				76,761
Other comprehensive income (loss)		(57,568)					(57,568)
Preferred stock dividends	[1]	(1,865)				(1,865)
Share-based compensation expense		3,703			3,703
Issuance of common stock under share-based compensation arrangements (shares)				159,904
Issuance of common stock under share-based compensation arrangements		(3,532)		$ 160	(3,692)
Repurchase of common shares (shares)				(115,324)
Repurchase of common shares		$ (6,310)						(6,310)
Ending balance, preferred stock (shares) at Mar. 31, 2022		5,700,000	5,700,000
Ending balance at Mar. 31, 2022		$ 1,377,406	$ 137,794	$ 34,882	$ 542,402	$ 780,628	$ (62,548)	$ (55,752)
Ending balance, common stock (shares) at Mar. 31, 2022		32,957,847		32,957,847

[1] Dividends per share of $0.333922 and $0.310297 per share were declared on Series E and F preferred stock for the three months ended March 31, 2022. Dividends per share of $0.34478125, $0.40625, $0.403125, and $0.375 per share were declared on Series C, D, E, and F preferred stock for the three months ended March 31, 2021.

[2] Refer to NOTE 3 – DISCONTINUED OPERATIONS for additional information about the sale of non-controlling interest in BMT including the reverse recapitalization of MFAC.

[3] Immediately after the closing of the BMT divestiture, Customers distributed all of its remaining investment in BM Technologies' common stock to its shareholders as special dividends, equivalent to 0.15389 of BM Technologies common stock for each share of Customers common stock. Refer to NOTE 3 – DISCONTINUED OPERATIONS.

[4] At the closing of the BMT divestiture, certain team members of BMT received restricted stock awards in BM Technologies' common stock. Refer to NOTE 3 – DISCONTINUED OPERATIONS.