Core Deposit Intangibles

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Core Deposit Intangibles

CORE DEPOSIT INTANGIBLES

A core deposit intangible is recorded on the acquisition date of an entity. During the measurement period, the Corporation may record subsequent adjustments to the core deposit intangible for provisional amounts recorded at the acquisition date. The Arlington Bank acquisition on May 19, 2017 resulted in a core deposit intangible of $4,526,000. The Ameriana acquisition on December 31, 2015 resulted in a core deposit intangible of $5,342,000, of which, $2,142,000 was recorded as a measurement period adjustment in the first quarter of 2016. Details regarding the Arlington Bank acquisition are discussed in NOTE 2. ACQUISITIONS, in the Notes to Consolidated Financial Statements of this Quarterly Report on Form 10-Q.

The carrying basis and accumulated amortization of recognized core deposit intangibles are noted below.

	June 30, 2017			December 31, 2016
Gross carrying amount	$	63,940		$	61,798
Core deposit intangibles acquired	4,526
Measurement period adjustment				2,142
Accumulated amortization	(50,968		)	(49,074		)
Core deposit intangibles	$	17,498		$	14,866

Estimated future amortization expense is summarized as follows:

	Amortization Expense
2017	$	2,329
2018	3,202
2019	2,609
2020	2,268
2021	2,022
After 2021	5,068
	$	17,498