Annual report pursuant to Section 13 and 15(d)

Acquisition - Summary of Purchase Price Allocation (Detail)

v3.6.0.2
Acquisition - Summary of Purchase Price Allocation (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Liabilities assumed:        
Bargain purchase gain on acquisition   $ 0 $ 0 $ (14,577)
Central Bancorp, Inc [Member]        
Consideration paid:        
CBI stockholders $ 50,000      
Redemption of preferred and cumulative unpaid dividends 28,675      
Accrued interest on subordinated debentures 0      
Total consideration paid: 78,675      
Assets acquired:        
Cash and cash equivalents 197,209      
Securities available for sale 663,497      
Loans 297,272      
Premises and equipment 17,925      
Other real estate owned 25,952      
Income tax assets, net 12,011      
Core deposit intangible 2,213      
FDIC loss sharing assets 11,413      
Bank-owned life insurance 18,296      
Servicing assets 7,497      
Other assets 14,636      
Total assets acquired 1,267,921      
Liabilities assumed:        
Deposits 1,098,997      
Subordinated debentures 18,473      
Rescinded stock obligation 15,485      
FHLB advances 10,000      
Servicing liabilities 6,039      
Other liabilities 25,675      
Total liabilities assumed 1,174,669      
Total identifiable net assets 93,252      
Bargain purchase gain on acquisition $ (14,577)