GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Change in the Carrying Value of Goodwill

The change in the carrying value of goodwill is summarized below:

	December 31,
	2016		2015
	(dollars in thousands)
Carrying amount of goodwill at beginning of year	$	90,082	$	63,547
Additions related to acquisitions in current year		35,485		25,880
Fair value adjustments related to acquisitions in prior year		(35)		655
Carrying amount of goodwill at end of year	$	125,532	$	90,082

Summary of Information Related to Acquired Intangible Assets

Following is a summary of information related to acquired intangible assets:

	As of December 31, 2016				As of December 31, 2015
	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
	(dollars in thousands)
Amortized intangible assets - core deposit premiums	$	26,250	$	8,822	$	21,504	$	4,446

Estimated Amortization Expense

The estimated amortization expense for each of the next five years is as follows (in thousands):

2017	$	3,932
2018		3,697
2019		3,622
2020		2,915
2021		1,691
Thereafter		1,571
	$	17,428