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GOODWILL AND OTHER INTANGIBLES (Tables)
3 Months Ended
Mar. 31, 2015
Gross Amount and Accumulated Amortization of Other Intangible Assets
The following table shows the gross amount and accumulated amortization of the Corporation’s intangible assets recognized as part of Other Assets in the consolidated statement of financial condition:
      
 As of As of
 March 31,  December 31,
 2015 2014
(Dollars in thousands)     
Core deposit intangible:     
Gross amount, beginning of period$ 45,844 $ 45,844
Addition as a result of acquisition  5,820   -
Accumulated amortization  (40,750)   (40,424)
Net carrying amount$ 10,914 $ 5,420
      
Remaining amortization period 9.9 years  8.4 years
      
Purchased credit card relationship intangible:     
Gross amount$ 24,465 $ 24,465
Accumulated amortization  (8,843)   (8,076)
Net carrying amount$ 15,622 $ 16,389
      
Remaining amortization period 6.7 years  6.9 years

 The estimated aggregate amortization expense related to these intangible assets for future periods is as follows:
     
   Amount 
   (In thousands) 
2015$ 3,813 
2016  4,737 
2017  4,197 
2018  3,293