Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details)

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Provision For (Reduction In Allowance) Unfunded Loan Commitments and Letters of Credit. $ (6,793) $ 10,282 $ (19,313) $ 11,949
Portion of ALLL balance:        
ALLL balance, beginning of period 667,996 623,064 638,413 597,843
Loan charge-offs (64,772) (59,268) (191,935) (162,505)
Allowance for Loan and Lease Loss, Recovery of Bad Debts 21,880 19,203 73,565 97,133
Provision for credit losses 43,590 63,805 136,206 115,896
Provision For (Reduction In Allowance) Loan and Lease Losses. 50,383 53,523 155,519 103,947
Allowance for loans sold or transferred to loans held for sale (1) (19,624) (76) (19,520)
ALLL balance, end of period 675,486 616,898 675,486 616,898
AULC Balance, beginning of period 85,359 73,748 97,879 72,081
AULC Balance, end of period 78,566 88,433 78,566 88,433
ACL balance, end of period 754,052 705,331 754,052 705,331
Additions to Unfunded Loan Commitments and Letters of Credit Allowance   4,403   4,403
Commercial        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Provision For (Reduction In Allowance) Unfunded Loan Commitments and Letters of Credit. (6,528) 9,739 (10,244) 10,008
Portion of ALLL balance:        
ALLL balance, beginning of period 474,576 424,507 451,091 398,753
Loan charge-offs (19,278) (24,839) (58,051) (70,721)
Allowance for Loan and Lease Loss, Recovery of Bad Debts 10,015 8,312 33,619 62,127
Provision for credit losses   36,689 47,539 54,510
Provision For (Reduction In Allowance) Loan and Lease Losses. 8,810      
Allowance for loans sold or transferred to loans held for sale (1) (12,874) (76) (12,874)
ALLL balance, end of period 474,122 431,795 474,122 431,795
AULC Balance, beginning of period 82,827 63,717 86,543 63,448
AULC Balance, end of period 76,299 77,859 76,299 77,859
ACL balance, end of period 550,421 509,654 550,421 509,654
Additions to Unfunded Loan Commitments and Letters of Credit Allowance   4,403   4,403
Consumer        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Provision For (Reduction In Allowance) Unfunded Loan Commitments and Letters of Credit. (265) 543 (9,069) 1,941
Portion of ALLL balance:        
ALLL balance, beginning of period 193,420 198,557 187,322 199,090
Loan charge-offs (45,494) (34,429) (133,884) (91,784)
Allowance for Loan and Lease Loss, Recovery of Bad Debts 11,865 10,891 39,946 35,006
Provision for credit losses   16,834   49,437
Provision For (Reduction In Allowance) Loan and Lease Losses. 41,573   107,980  
Allowance for loans sold or transferred to loans held for sale 0 (6,750) 0 (6,646)
ALLL balance, end of period 201,364 185,103 201,364 185,103
AULC Balance, beginning of period 2,532 10,031 11,336 8,633
AULC Balance, end of period 2,267 10,574 2,267 10,574
ACL balance, end of period $ 203,631 195,677 $ 203,631 195,677
Additions to Unfunded Loan Commitments and Letters of Credit Allowance   $ 0   $ 0