Quarterly report pursuant to Section 13 or 15(d)

Loans - Allowance for Loan Losses by Portfolio Segment (Detail)

v2.4.0.8
Loans - Allowance for Loan Losses by Portfolio Segment (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Jun. 30, 2014
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2013
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2014
Loans [Member]
Jun. 30, 2013
Loans [Member]
Jun. 30, 2014
Real estate loans [Member]
Jun. 30, 2013
Real estate loans [Member]
Jun. 30, 2014
Real estate loans [Member]
Jun. 30, 2013
Real estate loans [Member]
Dec. 31, 2013
Real estate loans [Member]
Jun. 30, 2014
Real estate loans [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2013
Real estate loans [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2014
Real estate loans [Member]
Loans [Member]
Jun. 30, 2013
Real estate loans [Member]
Loans [Member]
Jun. 30, 2014
Commercial and industrial loans [Member]
Jun. 30, 2013
Commercial and industrial loans [Member]
Jun. 30, 2014
Commercial and industrial loans [Member]
Jun. 30, 2013
Commercial and industrial loans [Member]
Dec. 31, 2013
Commercial and industrial loans [Member]
Jun. 30, 2014
Commercial and industrial loans [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2013
Commercial and industrial loans [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2014
Commercial and industrial loans [Member]
Loans [Member]
Jun. 30, 2013
Commercial and industrial loans [Member]
Loans [Member]
Jun. 30, 2014
Consumer loans [Member]
Jun. 30, 2013
Consumer loans [Member]
Jun. 30, 2014
Consumer loans [Member]
Jun. 30, 2013
Consumer loans [Member]
Dec. 31, 2013
Consumer loans [Member]
Jun. 30, 2014
Consumer loans [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2013
Consumer loans [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2014
Consumer loans [Member]
Loans [Member]
Jun. 30, 2013
Consumer loans [Member]
Loans [Member]
Jun. 30, 2013
Unallocated [Member]
Jun. 30, 2014
Unallocated [Member]
Jun. 30, 2013
Unallocated [Member]
Mar. 31, 2014
Unallocated [Member]
Jun. 30, 2014
Unallocated [Member]
Allowance for Loans and Leases Receivable [Member]
Jun. 30, 2013
Unallocated [Member]
Allowance for Loans and Leases Receivable [Member]
Allowance for loan losses:                                                                                    
Balance at beginning of period $ 56,593 $ 61,191 $ 57,555 $ 63,305           $ 44,230 $ 46,328 $ 43,550 $ 49,472           $ 10,425 $ 11,064 $ 11,287 $ 10,636           $ 633 $ 1,795 $ 1,427 $ 2,280           $ 2,004 $ 1,291 $ 917 $ 1,305    
Charge-offs (2,547) (3,490) (4,151) (6,514)           (60) (2,289) (1,188) (3,575)           (2,474) (1,165) (2,896) (2,740)           (13) (36) (67) (199)                      
Recoveries on loans previously charged off 1,741 1,867 5,992 2,581           87 1,101 3,005 1,282           1,652 760 2,973 1,244           2 6 14 55                      
(Negative provision) provision (3,901) 308 (7,510) 504           (3,954) 1,256 (5,064) (783)           135 459 (1,626) 1,978           (82) 119 (834) (251)           (1,526) 14 (440)      
Balance at end of period 51,886 59,876 51,886 59,876           40,303 46,396 40,303 46,396           9,738 11,118 9,738 11,118           540 1,884 540 1,884           478 1,305 478 1,305    
Ending balance: individually evaluated for impairment           5,166 5,424 47,886 45,674           2,448 711 35,616 28,267           2,605 4,328 10,741 15,760           113 385 1,529 1,647            
Ending balance: collectively evaluated for impairment           46,720 54,452 2,301,349 2,141,715           37,855 45,685 2,054,467 1,936,586           7,133 6,790 219,568 171,396           427 1,499 27,314 33,733         1,305 478
Loans receivable:                                                                                    
Ending balance $ 2,349,235 $ 2,187,389 $ 2,349,235 $ 2,187,389 $ 2,234,089         $ 2,090,083 $ 1,964,853 $ 2,090,083 $ 1,964,853 $ 1,969,798         $ 230,309 $ 187,156 $ 230,309 $ 187,156 $ 231,786         $ 28,843 $ 35,380 $ 28,843 $ 35,380 $ 32,505