XML 74 R62.htm IDEA: XBRL DOCUMENT v3.8.0.1
Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Summary of LHFI by Loan Type and Credit Quality Indicator (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Financing Receivable [Abstract]    
Current $ 8,322,246 $ 7,787,295
Financing Receivable, Recorded Investment, Past Due 15,806 14,684
Nonaccrual 69,289 49,234
Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due [1] 2,244 1,831
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Current 947,567 827,775
Financing Receivable, Recorded Investment, Past Due 212 339
Nonaccrual 2,365 3,323
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due [1]   54
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Current 1,619,325 1,630,536
Financing Receivable, Recorded Investment, Past Due 10,815 9,178
Nonaccrual 18,593 20,329
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due [1] 1,972 1,436
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Current 2,154,555 2,024,988
Financing Receivable, Recorded Investment, Past Due 719 706
Nonaccrual 17,611 8,482
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Current 481,897 317,567
Financing Receivable, Recorded Investment, Past Due 52 179
Nonaccrual 214 402
Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Current 1,542,185 1,511,826
Financing Receivable, Recorded Investment, Past Due 1,302 784
Nonaccrual 25,101 15,824
Consumer Loans [Member]    
Financing Receivable [Abstract]    
Current 170,034 168,030
Financing Receivable, Recorded Investment, Past Due 2,420 2,232
Nonaccrual 607 300
Consumer Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due [1] 272 341
State and Other Political Subdivision Loans [Member]    
Financing Receivable [Abstract]    
Current 936,614 916,480
Financing Receivable, Recorded Investment, Past Due   1,035
Other Loans [Member]    
Financing Receivable [Abstract]    
Current 470,069 390,093
Financing Receivable, Recorded Investment, Past Due 286 231
Nonaccrual 4,798 574
Commercial LHFI [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 6,650,815 6,084,312
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 886,304 770,436
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 133,987 131,076
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 2,172,800 2,033,445
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 481,710 317,481
Commercial LHFI [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 1,568,410 1,528,434
Commercial LHFI [Member] | Consumer Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 115  
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 936,613 917,515
Commercial LHFI [Member] | Other Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 470,876 385,925
Commercial LHFI [Member] | Pass [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 6,375,182 5,851,296
Commercial LHFI [Member] | Pass [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 879,025 752,318
Commercial LHFI [Member] | Pass [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 128,650 124,615
Commercial LHFI [Member] | Pass [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 2,109,122 1,989,554
Commercial LHFI [Member] | Pass [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 471,085 315,829
Commercial LHFI [Member] | Pass [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 1,417,334 1,386,155
Commercial LHFI [Member] | Pass [Member] | Consumer Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 35  
Commercial LHFI [Member] | Pass [Member] | State and Other Political Subdivision Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 920,318 899,935
Commercial LHFI [Member] | Pass [Member] | Other Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 449,613 382,890
Commercial LHFI [Member] | Special Mention [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 53,097 28,438
Commercial LHFI [Member] | Special Mention [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 323 9,567
Commercial LHFI [Member] | Special Mention [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 100 170
Commercial LHFI [Member] | Special Mention [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 4,978 4,394
Commercial LHFI [Member] | Special Mention [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 9,932 762
Commercial LHFI [Member] | Special Mention [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 31,914 7,095
Commercial LHFI [Member] | Special Mention [Member] | State and Other Political Subdivision Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 5,850 6,450
Commercial LHFI [Member] | Substandard [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 220,062 202,065
Commercial LHFI [Member] | Substandard [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 6,586 8,086
Commercial LHFI [Member] | Substandard [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 5,156 6,162
Commercial LHFI [Member] | Substandard [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 57,970 38,913
Commercial LHFI [Member] | Substandard [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 693 890
Commercial LHFI [Member] | Substandard [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 118,193 134,199
Commercial LHFI [Member] | Substandard [Member] | Consumer Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 80  
Commercial LHFI [Member] | Substandard [Member] | State and Other Political Subdivision Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 10,445 11,130
Commercial LHFI [Member] | Substandard [Member] | Other Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 20,939 2,685
Commercial LHFI [Member] | Doubtful [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 2,474 2,513
Commercial LHFI [Member] | Doubtful [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 370 465
Commercial LHFI [Member] | Doubtful [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 81 129
Commercial LHFI [Member] | Doubtful [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 730 584
Commercial LHFI [Member] | Doubtful [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 969 985
Commercial LHFI [Member] | Doubtful [Member] | Other Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 324 350
Consumer LHFI [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 8,407,341 7,851,213
Current 1,727,590 1,738,166
Nonaccrual 16,227 17,415
Subtotal 1,756,526 1,766,901
Consumer LHFI [Member] | Past Due 30-89 Days [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 10,647 9,489
Consumer LHFI [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 2,062 1,831
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 950,144 831,437
Current 63,548 60,701
Nonaccrual 170 58
Subtotal 63,840 61,001
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 122 188
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due   54
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 1,648,733 1,660,043
Current 1,489,165 1,503,096
Nonaccrual 15,451 17,058
Subtotal 1,514,746 1,528,967
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 8,340 7,377
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 1,790 1,436
Consumer LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 2,172,885 2,034,176
Current 74 731
Subtotal 85 731
Consumer LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 11  
Consumer LHFI [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 482,163 318,148
Current 453 667
Subtotal 453 667
Consumer LHFI [Member] | Commercial and Industrial Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 1,568,588 1,528,434
Current 178  
Subtotal 178  
Consumer LHFI [Member] | Consumer Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 173,061 170,562
Current 169,920 168,031
Nonaccrual 606 299
Subtotal 172,946 170,562
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 30-89 Days [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 2,148 1,891
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due 272 341
Consumer LHFI [Member] | State and Other Political Subdivision Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 936,614 917,515
Current 1  
Subtotal 1  
Consumer LHFI [Member] | Other Loans [Member]    
Financing Receivable [Abstract]    
Financing receivable commercial 475,153 390,898
Current 4,251 4,940
Subtotal 4,277 4,973
Consumer LHFI [Member] | Other Loans [Member] | Past Due 30-89 Days [Member]    
Financing Receivable [Abstract]    
Financing Receivable, Recorded Investment, Past Due $ 26 $ 33
[1] Past due 90 days or more but still accruing interest.