Unaudited Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive (Loss) Income
Treasury Stock
Unallocated Common Stock Held by ESOP
Total Brookline Bancorp, Inc. Stockholders' Equity
Noncontrolling Interest in Subsidiary
Adoption of ASU 2016-13 (CECL)
Adoption of ASU 2016-13 (CECL)
Retained Earnings
Adoption of ASU 2016-13 (CECL)
Total Brookline Bancorp, Inc. Stockholders' Equity
Balance at Dec. 31, 2018 $ 910,619 $ 852 $ 755,629 $ 212,838 $ (9,460) $ (59,120) $ (599) $ 900,140 $ 10,479      
Increase (Decrease) in Stockholders' Equity                        
Net loss attributable to Brookline Bancorp, Inc. 22,467     22,467       22,467        
Net income attributable to noncontrolling interest in subsidiary 43               43      
Other comprehensive income (loss) 5,067       5,067     5,067        
Common stock dividends (8,376)     (8,376)       (8,376)        
Dividend distribution to owners of noncontrolling interest in subsidiary (930)   (930)         (930)        
Redemption of noncontrolling interest in subsidiary (29,219)   (18,697)         (18,697) (10,522)      
Compensation under recognition and retention plan 813   814     (1)   813        
Common stock held by ESOP committed to be released 88   56       32 88        
Balance at Mar. 31, 2019 900,572 852 736,872 226,929 (4,393) (59,121) (567) 900,572 0      
Balance at Dec. 31, 2019 945,606 852 736,601 265,376 2,283 (59,073) (433) 945,606 0 $ (11,523) $ (11,523) $ (11,523)
Increase (Decrease) in Stockholders' Equity                        
Net loss attributable to Brookline Bancorp, Inc. (17,276)     (17,276)       (17,276)        
Net income attributable to noncontrolling interest in subsidiary 0                      
Other comprehensive income (loss) 14,664       14,664     14,664        
Common stock dividends (9,173)     (9,173)       (9,173)        
Compensation under recognition and retention plan 579   758 (45)   (134)   579        
Treasury stock, repurchase shares (10,410)         (10,410)   (10,410)        
Common stock held by ESOP committed to be released 101   63       38 101        
Balance at Mar. 31, 2020 $ 912,568 $ 852 $ 737,422 $ 227,359 $ 16,947 $ (69,617) $ (395) $ 912,568 $ 0