Annual report pursuant to Section 13 and 15(d)

Loans - Loans Receivable (Detail)

v3.3.1.900
Loans - Loans Receivable (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Aug. 31, 2014
Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans $ 3,183,316 $ 2,788,498    
Allowance for loans losses (42,935) (52,666)    
Loans receivable, net 3,140,381 2,735,832    
Real estate loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 2,845,514 2,511,429    
Real estate loans [Member] | Retail [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 740,350 684,400    
Real estate loans [Member] | Hotel/motel [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 543,425 462,718    
Real estate loans [Member] | Gas station [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 323,655 370,416    
Real estate loans [Member] | Other [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 978,661 848,906    
Real estate loans [Member] | Construction [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 23,387 9,527    
Real estate loans [Member] | Residential property [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 236,036 135,462    
Commercial and industrial loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 312,876 249,480    
Commercial and industrial loans [Member] | Commercial term [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 152,773 116,536    
Commercial and industrial loans [Member] | Commercial lines of credit [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 128,224 93,970    
Commercial and industrial loans [Member] | International loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 31,879 38,974    
Consumer loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 24,926 27,589    
Non-PCI Loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 3,163,302 2,740,760    
Allowance for loans losses (37,494) (51,640)   $ (57,555)
Loans receivable, net 3,125,808      
Non-PCI Loans [Member] | Real estate loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 2,825,718      
Non-PCI Loans [Member] | Real estate loans [Member] | Retail [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 735,501 675,072    
Non-PCI Loans [Member] | Real estate loans [Member] | Hotel/motel [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 539,345 454,499    
Non-PCI Loans [Member] | Real estate loans [Member] | Gas station [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 319,363 362,240    
Non-PCI Loans [Member] | Real estate loans [Member] | Other [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 973,243 842,126    
Non-PCI Loans [Member] | Real estate loans [Member] | Construction [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 23,387 9,517    
Non-PCI Loans [Member] | Real estate loans [Member] | Residential property [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 234,879 120,932    
Non-PCI Loans [Member] | Commercial and industrial loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 312,705      
Non-PCI Loans [Member] | Commercial and industrial loans [Member] | Commercial term [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 152,602 116,073    
Non-PCI Loans [Member] | Commercial and industrial loans [Member] | Commercial lines of credit [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 128,224 93,860    
Non-PCI Loans [Member] | Commercial and industrial loans [Member] | International loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 31,879 38,929    
Non-PCI Loans [Member] | Consumer loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 24,879 27,512    
PCI Loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 20,014 44,501 $ 65,346  
Allowance for loans losses (5,441) (1,026)    
Loans receivable, net 14,573 43,475   $ 0
PCI Loans [Member] | Real estate loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 19,796   64,823  
PCI Loans [Member] | Real estate loans [Member] | Retail [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 4,849 8,535    
Allowance for loans losses (269) (401)    
Loans receivable, net 4,580 8,134    
PCI Loans [Member] | Real estate loans [Member] | Hotel/motel [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 4,080 7,682    
Allowance for loans losses (88) (99)    
Loans receivable, net 3,992 7,583    
PCI Loans [Member] | Real estate loans [Member] | Gas station [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 4,292 7,745    
Allowance for loans losses (477) (302)    
Loans receivable, net 3,815 7,443    
PCI Loans [Member] | Real estate loans [Member] | Other [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 5,418      
PCI Loans [Member] | Real estate loans [Member] | Construction [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 0   183  
PCI Loans [Member] | Real estate loans [Member] | Residential property [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 1,157 14,371 4,472  
Allowance for loans losses (151) (28)    
Loans receivable, net 1,006 14,343    
PCI Loans [Member] | Real estate loans [Member] | Commercial real estate [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 18,639   60,168  
PCI Loans [Member] | Commercial and industrial loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 171   506  
PCI Loans [Member] | Commercial and industrial loans [Member] | Commercial term [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 171 327    
Allowance for loans losses (42) (131)    
Loans receivable, net 129 196    
PCI Loans [Member] | Commercial and industrial loans [Member] | Commercial lines of credit [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 0      
PCI Loans [Member] | Commercial and industrial loans [Member] | International loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 0      
PCI Loans [Member] | Consumer loans [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans 47 45 $ 17  
Allowance for loans losses (2) 0    
Loans receivable, net 45 45    
Owner Occupied Real Estate [Member] | Real estate loans [Member] | Commercial real estate [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total gross loans $ 1,200,000 $ 1,120,000