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
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Carrying Amount    
Balance at beginning of period $ 3,812,340  
Balance at end of period 3,910,799  
PCI Loans and Leases [Member]    
Carrying Amount    
Balance at beginning of period 8,892 $ 14,573
Accretion 134 421
Payments received (1,037) (811)
Disposal/transfer to OREO 0 211
Change in expected cash flows, net 0 0
Loan loss (provision) income 80 (204)
Balance at end of period 8,069 14,190
Accretable Yield    
Balance at beginning of period (5,677) (5,944)
Accretion 134 421
Payments received 0 0
Disposal/transfer to OREO 0 0
Change in expected cash flows, net 295 (578)
Loan loss (provision) income 0 0
Balance at end of period $ (5,248) $ (6,101)