Loans (Tables)

3 Months Ended

Mar. 31, 2018

Receivables [Abstract]

Schedule of Loans by Class

The following table presents loans by class as of the dates indicated:

	March 31, 2018		December 31, 2017
Real estate loans:
Commercial	$	2,821.9	$	2,822.9
Construction:
Land acquisition & development	364.6		348.7
Residential	230.6		240.2
Commercial	140.8		119.4
Total construction loans	736.0		708.3
Residential	1,486.6		1,487.4
Agricultural	156.9		158.2
Total real estate loans	5,201.4		5,176.8
Consumer:
Indirect consumer	782.9		784.7
Other consumer	173.0		175.1
Credit card	75.2		74.6
Total consumer loans	1,031.1		1,034.4
Commercial	1,244.1		1,215.4
Agricultural	133.9		136.2
Other, including overdrafts	4.0		4.9
Loans held for investment	7,614.5		7,567.7
Mortgage loans held for sale	32.3		46.6
Total loans	$	7,646.8	$	7,614.3

Schedule of Recorded Investment in Past Due Loans by Class

The following tables present the Company's recorded investment and contractual aging of the Company's recorded investment in loans by class as of the dates indicated. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due.

							Total Loans
	30 - 59		60 - 89		> 90		30 or More
	Days		Days		Days		Days		Current		Non-accrual		Total
As of March 31, 2018	Past Due		Past Due		Past Due		Past Due		Loans		Loans		Loans
Real estate
Commercial	$	4.4	$	1.0	$	0.5	$	5.9	$	2,792.2	$	23.8	$	2,821.9
Construction:
Land acquisition & development	0.7		0.2		0.3		1.2		360.3		3.1		364.6
Residential	3.5		0.7		—		4.2		225.7		0.7		230.6
Commercial	0.1		—		—		0.1		136.9		3.8		140.8
Total construction loans	4.3		0.9		0.3		5.5		722.9		7.6		736.0
Residential	3.5		6.8		0.6		10.9		1,469.2		6.5		1,486.6
Agricultural	2.2		8.4		0.1		10.7		141.6		4.6		156.9
Total real estate loans	14.4		17.1		1.5		33.0		5,125.9		42.5		5,201.4
Consumer:
Indirect consumer	5.5		0.9		0.5		6.9		774.1		1.9		782.9
Other consumer	1.2		0.3		—		1.5		171.1		0.4		173.0
Credit card	0.7		0.4		0.7		1.8		73.4		—		75.2
Total consumer loans	7.4		1.6		1.2		10.2		1,018.6		2.3		1,031.1
Commercial	6.7		4.9		1.0		12.6		1,215.1		16.4		1,244.1
Agricultural	1.2		0.3		—		1.5		130.5		1.9		133.9
Other, including overdrafts	—		—		—		—		4.0		—		4.0
Loans held for investment	29.7		23.9		3.7		57.3		7,494.1		63.1		7,614.5
Mortgage loans originated for sale	—		—		—		—		32.3		—		32.3
Total loans	$	29.7	$	23.9	$	3.7	$	57.3	$	7,526.4	$	63.1	$	7,646.8

							Total Loans
	30 - 59		60 - 89		> 90		30 or More
	Days		Days		Days		Days		Current		Non-accrual		Total
As of December 31, 2017	Past Due		Past Due		Past Due		Past Due		Loans		Loans		Loans
Real estate
Commercial	$	2.9	$	0.5	$	0.3	$	3.7	$	2,792.4	$	26.8	$	2,822.9
Construction:
Land acquisition & development	7.3		0.3		0.3		7.9		337.8		3.0		348.7
Residential	2.1		—		—		2.1		236.4		1.7		240.2
Commercial	—		—		—		—		115.6		3.8		119.4
Total construction loans	9.4		0.3		0.3		10.0		689.8		8.5		708.3
Residential	13.3		1.4		0.4		15.1		1,464.1		8.2		1,487.4
Agricultural	0.3		—		0.2		0.5		154.3		3.4		158.2
Total real estate loans	25.9		2.2		1.2		29.3		5,100.6		46.9		5,176.8
Consumer:
Indirect consumer	7.8		2.1		0.4		10.3		772.6		1.8		784.7
Other consumer	1.6		0.5		0.1		2.2		172.6		0.3		175.1
Credit card	0.9		0.6		0.7		2.2		72.4		—		74.6
Total consumer loans	10.3		3.2		1.2		14.7		1,017.6		2.1		1,034.4
Commercial	3.9		1.7		0.7		6.3		1,189.5		19.6		1,215.4
Agricultural	1.8		0.1		—		1.9		133.5		0.8		136.2
Other, including overdrafts	—		—		—		—		4.9		—		4.9
Loans held for investment	41.9		7.2		3.1		52.2		7,446.1		69.4		7,567.7
Mortgage loans originated for sale	—		—		—		—		46.6		—		46.6
Total loans	$	41.9	$	7.2	$	3.1	$	52.2	$	7,492.7	$	69.4	$	7,614.3

Schedule of Acquired Loans with Credit Impairment

Information regarding loans acquired credit-impaired as of the May 30, 2017 acquisition date is as follows:

Contractually required principal and interest payments	$	49.7
Contractual cash flows not expected to be collected ("non-accretable discount")	24.7
Cash flows expected to be collected	25.0
Interest component of cash flows expected to be collected ("accretable discount")	1.9
Fair value of acquired credit-impaired loans	$	23.1

The following table displays the outstanding unpaid balances and accrual status of loans acquired with credit impairment as of March 31, 2018 and 2017:    

	As of March 31,
	2018		2017
Outstanding balance	$	33.5	$	32.6
Carrying value
Loans on accrual status	20.7		18.9
Total carrying value	$	20.7	$	18.9

The following table summarizes changes in the accretable yield for loans acquired credit impaired for the three months ended March 31, 2018 and 2017:

	Three Months Ended March 31,
	2018			2017
Beginning balance	$	7.3		$	6.8
Accretion income	(0.7		)	(0.6		)
Reductions due to exit events	(0.2		)	(0.6		)
Reclassifications from nonaccretable differences	0.8			0.8
Ending balance	$	7.2		$	6.4

Schedule of Recorded Investment in Impaired Loans

The following tables present information on the Company’s recorded investment in impaired loans as of dates indicated:

As of March 31, 2018	Unpaid Total Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Real estate:
Commercial	$	44.0	$	17.5	$	16.1	$	33.6	$	3.4
Construction:
Land acquisition & development	9.2		3.4		—		3.4		—
Residential	0.8		0.2		0.5		0.7		0.1
Commercial	4.6		0.3		3.4		3.7		2.1
Total construction loans	14.6		3.9		3.9		7.8		2.2
Residential	9.7		6.2		2.1		8.3		0.4
Agricultural	4.6		4.4		—		4.4		—
Total real estate loans	72.9		32.0		22.1		54.1		6.0
Commercial	25.4		6.7		13.7		20.4		4.5
Agricultural	2.0		1.7		0.3		2.0		0.1
Total	$	100.3	$	40.4	$	36.1	$	76.5	$	10.6

As of December 31, 2017	Unpaid Total Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Real estate:
Commercial	$	45.6	$	20.9	$	14.1	$	35.0	$	3.9
Construction:
Land acquisition & development	10.0		3.4		0.5		3.9		—
Residential	1.8		1.7		—		1.7		—
Commercial	4.7		0.4		3.5		3.9		2.2
Total construction loans	16.5		5.5		4.0		9.5		2.2
Residential	11.5		8.2		2.0		10.2		0.1
Agricultural	3.7		3.6		—		3.6		—
Total real estate loans	77.3		38.2		20.1		58.3		6.2
Commercial	29.5		12.4		11.4		23.8		4.4
Agricultural	1.1		0.8		0.3		1.1		0.2
Total	$	107.9	$	51.4	$	31.8	$	83.2	$	10.8

The following table presents the average recorded investment in and income recognized on impaired loans for the periods indicated:

	Three Months Ended March 31,
	2018				2017
	Average Recorded Investment		Income Recognized		Average Recorded Investment		Income Recognized
Real estate	$	56.1	$	—	$	66.1	$	0.2
Consumer	—		—		—		—
Commercial	22.1		—		32.7		—
Agricultural	1.5		—		2.4		—
Total	$	79.7	$	—	$	101.2	$	0.2

Schedule of Recorded Investment in Criticized Loans by Class and Credit Quality Indicator

The following tables present the Company’s recorded investment in criticized loans by class and credit quality indicator based on the most recent analysis performed as of the dates indicated:

As of March 31, 2018	Other Assets Especially Mentioned		Substandard		Doubtful		Total Criticized Loans
Real estate:
Commercial	$	76.7	$	92.8	$	8.0	$	177.5
Construction:
Land acquisition & development	5.5		15.6		—		21.1
Residential	4.0		1.0		0.5		5.5
Commercial	7.9		3.6		3.5		15.0
Total construction loans	17.4		20.2		4.0		41.6
Residential	6.7		11.4		0.9		19.0
Agricultural	6.4		18.9		—		25.3
Total real estate loans	107.2		143.3		12.9		263.4
Consumer:
Indirect consumer	0.7		2.2		0.2		3.1
Other consumer	0.4		0.8		0.2		1.4
Total consumer loans	1.1		3.0		0.4		4.5
Commercial	47.5		55.5		10.8		113.8
Agricultural	3.7		10.6		0.5		14.8
Total	$	159.5	$	212.4	$	24.6	$	396.5

As of December 31, 2017	Other Assets Especially Mentioned		Substandard		Doubtful		Total Criticized Loans
Real estate:
Commercial	$	78.0	$	96.4	$	10.3	$	184.7
Construction:
Land acquisition & development	3.2		16.4		—		19.6
Residential	2.3		1.7		0.5		4.5
Commercial	2.4		3.6		3.5		9.5
Total construction loans	7.9		21.7		4.0		33.6
Residential	3.9		12.5		1.9		18.3
Agricultural	4.3		19.1		—		23.4
Total real estate loans	94.1		149.7		16.2		260.0
Consumer:
Indirect consumer	0.8		2.2		0.3		3.3
Other consumer	0.4		0.7		0.2		1.3
Total consumer loans	1.2		2.9		0.5		4.6
Commercial	54.7		56.3		11.1		122.1
Agricultural	5.1		8.3		0.4		13.8
Total	$	155.1	$	217.2	$	28.2	$	400.5