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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Allowance for Loan and Lease Losses (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Allowance for Loan and Lease Losses [Roll Forward]        
Balance at beginning of period $ 42,385 $ 37,483 $ 40,444 $ 35,533
Loans and leases charged off (959) (393) (4,214) (1,267)
Recoveries of loans and leases previously charged off 85 551 195 1,285
Provision for loan and lease losses 3,561 2,592 8,647 4,682
Balance at end of period $ 45,072 $ 40,233 $ 45,072 $ 40,233