GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in the carrying amount of goodwill

The following table presents the changes in the carrying amount of goodwill for segments with goodwill balances for the years ended December 31, 2015 and 2014:




($ in thousands)	Year Ended December 31,
	2015						2014
	Retail Banking		Commercial Banking		Total		Retail Banking		Commercial Banking		Total
Beginning balance	$	357,207	$	112,226	$	469,433	$	320,566	$	16,872	$	337,438
Addition from MetroCorp acquisition ⁽¹⁾	—		—		—		36,641		95,354		131,995
Ending balance	$	357,207	$	112,226	$	469,433	$	357,207	$	112,226	$	469,433


(1)	Includes $11.0 million of tax and BOLI adjustments recorded in the fourth quarter of 2014 due to the acquisition of MetroCorp, as discussed in Note 2 — Business Combination to the Consolidated Financial Statements.

Schedule of finite-lived intangible assets

The following table presents the gross carrying value of intangible assets and accumulated amortization for the years ended December 31, 2015 and 2014:




($ in thousands)	2015		2014
Gross balance	$	108,814	$	108,814
Accumulated amortization	72,739		63,505
Net carrying balance	$	36,075	$	45,309

Estimated future amortization expense

The following table presents the estimated future amortization expense of premiums on acquired deposits at December 31, 2015:




Year ended December 31,	Amount
	($ in thousands)
2016	$	8,086
2017	6,935
2018	5,883
2019	4,864
2020	3,846
Thereafter	6,461
Total	$	36,075