XML 67 R55.htm IDEA: XBRL DOCUMENT v3.19.1
Allowance for Credit Losses and Credit Quality - Schedule of Allowance for Loan Losses for Legacy and Acquired Loans, by Loan Portfolio (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Financing Receivable, Allowance for Credit Losses    
Allowance for loan losses at beginning of period $ 140,571 $ 140,891
Provision for (Reversal of) loan losses 12,612 7,987
Transfer of balance to OREO and other (2,885) (48)
Loans charged-off (8,918) (9,116)
Recoveries 1,586 4,813
Allowance for loan losses at end of period 142,966 144,527
Financing Receivable, Reserve For Unfunded Commitments    
Reserve for unfunded commitments at beginning of period 14,830 13,208
Provision for (Reversal of) unfunded commitments 1,151 224
Reserve for unfunded commitments at end of period 15,981 13,432
Allowance on loans individually evaluated for impairment 16,948 19,698
Allowance on loans collectively evaluated for impairment 114,698 90,696
Allowance on loans acquired with deteriorated credit quality 158,947 157,959
Loans, net of unearned income:    
Loans, net of unearned income 22,968,295 21,706,090
Balance at end of period individually evaluated for impairment 175,312 196,532
Balance at end of period collectively evaluated for impairment 22,464,741 21,027,680
Commercial Loans | Real Estate    
Financing Receivable, Allowance for Credit Losses    
Allowance for loan losses at beginning of period 51,806 54,201
Provision for (Reversal of) loan losses 6,887 6,378
Transfer of balance to OREO and other 0 (48)
Loans charged-off (72) (114)
Recoveries 103 191
Allowance for loan losses at end of period 58,724 60,608
Financing Receivable, Reserve For Unfunded Commitments    
Reserve for unfunded commitments at beginning of period 4,869 4,531
Provision for (Reversal of) unfunded commitments 794 1,476
Reserve for unfunded commitments at end of period 5,663 6,007
Allowance on loans individually evaluated for impairment 3,078 2,506
Allowance on loans collectively evaluated for impairment 50,210 35,871
Loans, net of unearned income:    
Loans, net of unearned income 9,775,590 9,248,951
Balance at end of period individually evaluated for impairment 67,909 78,489
Balance at end of period collectively evaluated for impairment 9,546,809 8,946,138
Commercial Loans | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses    
Allowance for loan losses at beginning of period 54,096 53,916
Provision for (Reversal of) loan losses 2,876 294
Transfer of balance to OREO and other 0 0
Loans charged-off (4,931) (5,378)
Recoveries 446 3,698
Allowance for loan losses at end of period 52,487 52,530
Financing Receivable, Reserve For Unfunded Commitments    
Reserve for unfunded commitments at beginning of period 6,198 5,309
Provision for (Reversal of) unfunded commitments 128 (1,004)
Reserve for unfunded commitments at end of period 6,326 4,305
Allowance on loans individually evaluated for impairment 10,988 14,040
Allowance on loans collectively evaluated for impairment 39,997 36,208
Loans, net of unearned income:    
Loans, net of unearned income 5,852,568 5,325,682
Balance at end of period individually evaluated for impairment 63,889 78,725
Balance at end of period collectively evaluated for impairment 5,764,084 5,211,736
Residential Mortgage    
Financing Receivable, Allowance for Credit Losses    
Allowance for loan losses at beginning of period 12,998 9,117
Provision for (Reversal of) loan losses 1,749 (686)
Transfer of balance to OREO and other (2,881) 0
Loans charged-off (28) (105)
Recoveries 32 22
Allowance for loan losses at end of period 11,870 8,348
Financing Receivable, Reserve For Unfunded Commitments    
Reserve for unfunded commitments at beginning of period 866 555
Provision for (Reversal of) unfunded commitments 22 (15)
Reserve for unfunded commitments at end of period 888 540
Allowance on loans individually evaluated for impairment 258 178
Allowance on loans collectively evaluated for impairment 7,404 2,073
Loans, net of unearned income:    
Loans, net of unearned income 4,415,267 3,971,067
Balance at end of period individually evaluated for impairment 7,679 6,041
Balance at end of period collectively evaluated for impairment 4,323,051 3,826,721
Consumer and Other Loans    
Financing Receivable, Allowance for Credit Losses    
Allowance for loan losses at beginning of period 21,671 23,657
Provision for (Reversal of) loan losses 1,100 2,001
Transfer of balance to OREO and other (4) 0
Loans charged-off (3,887) (3,519)
Recoveries 1,005 902
Allowance for loan losses at end of period 19,885 23,041
Financing Receivable, Reserve For Unfunded Commitments    
Reserve for unfunded commitments at beginning of period 2,897 2,813
Provision for (Reversal of) unfunded commitments 207 (233)
Reserve for unfunded commitments at end of period 3,104 2,580
Allowance on loans individually evaluated for impairment 2,624 2,974
Allowance on loans collectively evaluated for impairment 17,087 16,544
Loans, net of unearned income:    
Loans, net of unearned income 2,924,870 3,160,390
Balance at end of period individually evaluated for impairment 35,835 33,277
Balance at end of period collectively evaluated for impairment 2,830,797 3,043,085
Receivables Acquired with Deteriorated Credit Quality    
Financing Receivable, Reserve For Unfunded Commitments    
Allowance on loans acquired with deteriorated credit quality 11,320 34,133
Loans, net of unearned income:    
Balance at end of period acquired with deteriorated credit quality 328,242 481,878
Receivables Acquired with Deteriorated Credit Quality | Commercial Loans | Real Estate    
Financing Receivable, Reserve For Unfunded Commitments    
Allowance on loans acquired with deteriorated credit quality 5,436 22,231
Loans, net of unearned income:    
Balance at end of period acquired with deteriorated credit quality 160,872 224,324
Receivables Acquired with Deteriorated Credit Quality | Commercial Loans | Commercial and industrial    
Financing Receivable, Reserve For Unfunded Commitments    
Allowance on loans acquired with deteriorated credit quality 1,502 2,282
Loans, net of unearned income:    
Balance at end of period acquired with deteriorated credit quality 24,595 35,221
Receivables Acquired with Deteriorated Credit Quality | Residential Mortgage    
Financing Receivable, Reserve For Unfunded Commitments    
Allowance on loans acquired with deteriorated credit quality 4,208 6,097
Loans, net of unearned income:    
Balance at end of period acquired with deteriorated credit quality 84,537 138,305
Receivables Acquired with Deteriorated Credit Quality | Consumer and Other Loans    
Financing Receivable, Reserve For Unfunded Commitments    
Allowance on loans acquired with deteriorated credit quality 174 3,523
Loans, net of unearned income:    
Balance at end of period acquired with deteriorated credit quality $ 58,238 $ 84,028