XML 101 R81.htm IDEA: XBRL DOCUMENT v3.10.0.1
Allowance for Loan Losses - Schedule of Allowance for Loan Losses by Portfolio Segment (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]            
Beginning balance $ 72.1 $ 76.2 $ 76.8      
Provision charged (credited) to operating expense 8.6 11.0 10.0      
Less loans charged-off (19.7) (22.8) (19.8)      
Add back recoveries of loans previously charged-off 12.0 7.7 9.2      
Ending balance 73.0 72.1 76.2      
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]            
Individually evaluated for impairment       $ 6.8 $ 10.8 $ 14.0
Collectively evaluated for impairment       66.2 61.3 62.2
Ending balance 72.1 76.2 76.8 73.0 72.1 76.2
Total loans:            
Individually evaluated for impairment       64.8 83.2 104.7
Collectively evaluated for impairment       8,405.6 7,484.5 5,312.0
Total loans held for investment       8,470.4 7,567.7 5,416.7
Allowance for loans losses       0.8 1.0  
Real Estate            
Allowance for Loan and Lease Losses [Roll Forward]            
Beginning balance 31.7 28.6 52.3      
Provision charged (credited) to operating expense (0.7) 6.0 (21.7)      
Less loans charged-off (3.7) (4.3) (5.2)      
Add back recoveries of loans previously charged-off 3.7 1.4 3.2      
Ending balance 31.0 31.7 28.6      
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]            
Individually evaluated for impairment       1.3 6.2 4.6
Collectively evaluated for impairment       29.7 25.5 24.0
Ending balance 31.7 28.6 52.3 31.0 31.7 28.6
Total loans:            
Individually evaluated for impairment       41.8 58.3 68.6
Collectively evaluated for impairment       5,791.7 5,118.5 3,445.4
Total loans held for investment       5,833.5 5,176.8 3,514.0
Consumer            
Allowance for Loan and Lease Losses [Roll Forward]            
Beginning balance 8.7 7.7 5.1      
Provision charged (credited) to operating expense 6.8 8.1 8.4      
Less loans charged-off (11.3) (11.3) (8.6)      
Add back recoveries of loans previously charged-off 4.5 4.2 2.8      
Ending balance 8.7 8.7 7.7      
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]            
Individually evaluated for impairment       0.0 0.0 0.0
Collectively evaluated for impairment       8.7 8.7 7.7
Ending balance 8.7 7.7 5.1 8.7 8.7 7.7
Total loans:            
Individually evaluated for impairment       0.0 0.0 0.0
Collectively evaluated for impairment       1,070.2 1,034.4 970.3
Total loans held for investment       1,070.2 1,034.4 970.3
Commercial            
Allowance for Loan and Lease Losses [Roll Forward]            
Beginning balance 30.5 38.1 18.8      
Provision charged (credited) to operating expense 1.9 (2.9) 21.9      
Less loans charged-off (4.7) (6.8) (5.8)      
Add back recoveries of loans previously charged-off 3.6 2.1 3.2      
Ending balance 31.3 30.5 38.1      
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]            
Individually evaluated for impairment       5.2 4.4 9.3
Collectively evaluated for impairment       26.1 26.1 28.8
Ending balance 30.5 38.1 18.8 31.3 30.5 38.1
Total loans:            
Individually evaluated for impairment       19.9 23.8 32.4
Collectively evaluated for impairment       1,290.4 1,191.6 765.5
Total loans held for investment       1,310.3 1,215.4 797.9
Agriculture            
Allowance for Loan and Lease Losses [Roll Forward]            
Beginning balance 1.2 1.8 0.6      
Provision charged (credited) to operating expense 0.6 (0.2) 1.4      
Less loans charged-off 0.0 (0.4) (0.2)      
Add back recoveries of loans previously charged-off 0.2 0.0 0.0      
Ending balance 2.0 1.2 1.8      
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]            
Individually evaluated for impairment       0.3 0.2 0.1
Collectively evaluated for impairment       1.7 1.0 1.7
Ending balance 1.2 1.8 0.6 2.0 1.2 1.8
Total loans:            
Individually evaluated for impairment       3.1 1.1 3.7
Collectively evaluated for impairment       251.7 135.1 129.2
Total loans held for investment       254.8 136.2 132.9
Other            
Allowance for Loan and Lease Losses [Roll Forward]            
Beginning balance 0.0 0.0 0.0      
Provision charged (credited) to operating expense 0.0 0.0 0.0      
Less loans charged-off 0.0 0.0 0.0      
Add back recoveries of loans previously charged-off 0.0 0.0 0.0      
Ending balance 0.0 0.0 0.0      
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]            
Individually evaluated for impairment       0.0 0.0 0.0
Collectively evaluated for impairment       0.0 0.0 0.0
Ending balance $ 0.0 $ 0.0 $ 0.0 0.0 0.0 0.0
Total loans:            
Individually evaluated for impairment       0.0 0.0 0.0
Collectively evaluated for impairment       1.6 4.9 1.6
Total loans held for investment       $ 1.6 $ 4.9 $ 1.6