INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS

Intangible Assets: At March 31, 2013, intangible assets consisted primarily of core deposit intangibles (CDI), which are amounts recorded in business combinations or deposit purchase transactions related to the value of transaction-related deposits and the value of the customer relationships associated with the deposits.

The Company amortizes CDI over their estimated useful life and reviews them at least annually for events or circumstances that could impact their recoverability. The CDI assets shown in the table below represent the value ascribed to the long-term deposit relationships acquired in three separate bank acquisitions during 2007. These intangible assets are being amortized using an accelerated method over estimated useful lives of eight years. The CDI assets are not estimated to have a significant residual value. Intangible assets are amortized over their useful lives and are also reviewed for impairment.

The following table summarizes the changes in the Company’s core deposit intangibles and other intangibles for the three months ended March 31, 2013 and the year ended December 31, 2012 (in thousands):



	Core Deposit Intangibles			Other		Total
Balance, December 31, 2012	$	4,230		$	—	$	4,230
Amortization	(506		)	—		(506		)
Balance, March 31, 2013	$	3,724		$	—	$	3,724



	Core Deposit Intangibles			Other			Total
Balance, December 31, 2011	$	6,322		$	9		$	6,331
Amortization	(552		)	(2		)	(554		)
Balance, March 31, 2012	$	5,770		$	7		$	5,777

The following table presents the estimated annual amortization expense with respect to existing intangibles as of March 31, 2013 (in thousands):



Year Ended	Core Deposit Intangibles
December 31, 2013	$	1,908
December 31, 2014	1,724
December 31, 2015	598
	$	4,230

Mortgage Servicing Rights: Mortgage servicing rights are reported in other assets. Mortgage servicing rights are initially recorded at fair value and are amortized in proportion to, and over the period of, the estimated future net servicing income of the underlying financial assets. Mortgage servicing rights are subsequently evaluated for impairment based upon the fair value of the rights compared to the amortized cost (remaining unamortized initial fair value). If the fair value is less than the amortized cost, a valuation allowance is created through an impairment charge to servicing fee income. However, if the fair value is greater than the amortized cost, the amount above the amortized cost is not recognized in the carrying value. During the three months ended March 31, 2013 and 2012, the Company did not record an impairment charge. Loans serviced for others totaled $984 million, $918 million and $717 million at March 31, 2013, December 31, 2012 and March 31, 2012, respectively. Custodial accounts maintained in connection with this servicing totaled $2.8 million, $4.7 million and $1.8 million at March 31, 2013, December 31, 2012, and March 31, 2012, respectively.

An analysis of our mortgage servicing rights for the three months ended March 31, 2013 and 2012 is presented below (in thousands):



	Three Months Ended March 31
	2013			2012
Balance, beginning of the period	$	6,244		$	5,584
Amounts capitalized	776			913
Amortization ⁽¹⁾	(685		)	(627		)
Balance, end of the period	$	6,335		$	5,870


⁽¹⁾	Amortization of mortgage servicing rights is recorded as a reduction of loan servicing income and any unamortized balance is fully written off if the loan repays in full.