Quarterly report pursuant to Section 13 or 15(d)

Loans and Leases - Schedule of Changes in Outstanding Balance and Carrying Amount of PCI Loans (Detail)

v3.7.0.1
Loans and Leases - Schedule of Changes in Outstanding Balance and Carrying Amount of PCI Loans (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Carrying Amount    
Balance at beginning of period $ 3,812,340  
Balance at end of period 4,039,304  
PCI Loans and Leases [Member]    
Carrying Amount    
Balance at beginning of period 8,892 $ 14,573
Accretion 317 753
Payments received (1,434) (6,713)
Disposal/transfer to OREO 37 1,103
Change in expected cash flows, net 0 0
Loan loss (provision) income 252 (144)
Balance at end of period 8,064 9,572
Accretable Yield    
Balance at beginning of period (5,677) (5,944)
Accretion 317 753
Payments received 0 0
Disposal/transfer to OREO 0 0
Change in expected cash flows, net 121 683
Loan loss (provision) income 0 0
Balance at end of period $ (5,239) $ (4,508)