Other Comprehensive Income/Loss (Tables)

6 Months Ended

Jun. 30, 2022

Equity [Abstract]

Schedule of Other Comprehensive Income and Related Tax Effects

The gross amounts of each component of other comprehensive loss and the related tax effects are as follows:

	Pre-tax				Tax Expense (Benefit)				Net of Tax
Three Months Ended June 30,	2022		2021		2022		2021		2022		2021
Investment securities available-for sale:
Change in net unrealized loss during period	$	(161.6)	$	(0.8)	$	(45.2)	$	(0.2)	$	(116.4)	$	(0.6)
Reclassification adjustment for net loss included in net income	0.1		0.1		—		—		0.1		0.1
Net change in unamortized (losses) gains on available-for-sale securities transferred into held-to-maturity	(0.9)		24.8		(0.2)		6.3		(0.7)		18.5
Change in net unrealized loss (gain) on derivatives	(15.0)		(0.8)		(4.2)		(0.2)		(10.8)		(0.6)
Total other comprehensive (loss) income	$	(177.4)	$	23.3	$	(49.6)	$	5.9	$	(127.8)	$	17.4

	Pre-tax				Tax Expense (Benefit)				Net of Tax
Six Months Ended June 30,	2022		2021		2022		2021		2022		2021
Investment securities available-for sale:
Change in net unrealized loss during period	$	(414.2)	$	(67.6)	$	(107.9)	$	(17.2)	$	(306.3)	$	(50.4)
Reclassification adjustment for net loss included in net income	0.2		0.1		—		—		0.2		0.1
Reclassification adjustment for securities transferred from held-to-maturity to available-for-sale	0.2		—		0.1		—		0.1		—
Net change in unamortized (losses) gains on available-for-sale securities transferred into held-to-maturity	(23.9)		24.8		(5.9)		6.3		(18.0)		18.5
Change in net unrealized loss (gain) on derivatives	6.3		(0.9)		1.1		(0.2)		5.2		(0.7)
Total other comprehensive loss	$	(431.4)	$	(43.6)	$	(112.6)	$	(11.1)	$	(318.8)	$	(32.5)

Schedule of Accumulated Other Comprehensive Income (Loss)

The components of accumulated other comprehensive loss, net of related tax effects, are as follows:

	June 30, 2022		December 31, 2021
Net unrealized loss on investment securities available-for-sale	$	(333.6)	$	(29.0)
Net unrealized (loss) gain on investment securities transferred to held-to-maturity	(3.9)		15.0
Net unrealized gain on derivatives	7.7		3.0
Net accumulated other comprehensive loss	$	(329.8)	$	(11.0)