GOODWILL AND OTHER INTANGIBLES (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and other Intangible Assets [Abstract]

Gross Amount and Accumulated Amortization of Other Intangible Assets [Table Text Block]

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 statements of financial condition:
	As of
	December 31,
	2018		2017
(Dollars in thousands)
Core deposit intangible:
Gross amount	$	51,664	$	51,664
Accumulated amortization (1)		(47,329)		(46,186)
Net carrying amount	$	4,335	$	5,478
Remaining amortization period		6.0 years		7.0 years
Purchased credit card relationship intangible:
Gross amount	$	24,465	$	24,465
Accumulated amortization (2)		(18,763)		(16,465)
Net carrying amount	$	5,702	$	8,000
Remaining amortization period		2.9 years		3.9 years
Insurance customer relationship intangible:
Gross amount	$	1,067	$	1,067
Accumulated amortization (3)		(445)		(292)
Net carrying amount	$	622	$	775
Remaining amortization period		4.0 years		5.0 years
(1) For the years ended December 31, 2018, 2017 and 2016, the amortization expense of core deposit intangibles amounted to $1.1 million, $1.7 million and $2.0 million, respectively.
(2) For the years ended December 31, 2018, 2017 and 2016, the amortization expense of the purchased credit card relationship intangible amounted to $2.3 million, $2.5 million and $2.8 million, respectively.
(3) For the years ended December 31, 2018, 2017 and 2016, the amortization expense of the insurance customer relationship intangible amounted to $0.2 million, $0.2 million and $0.1 million, respectively.

Schedule of Expected Amortization Expense [Table Text Block]

The estimated aggregate annual amortization expense related to the intangible assets for future periods is as follows:
			Amount
	(In thousands)
	2019	$	3,088
	2020		2,851
	2021		2,658
	2022		915
	2023		622
	2024 and after		525