Goodwill, Core Deposit Premium and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class

The gross carrying amount of other intangible assets and the associated accumulated amortization at March 31, 2013, and December 31, 2012, are presented in the table below, in thousands:

	March 31, 2013						December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortizing intangible assets:
Core deposit intangibles	$	11,668	$	9,515	$	2,153	$	11,668	$	9,327	$	2,341
Mortgage servicing rights	24,959		7,326		17,633		22,892		7,239		15,653
Customer relationship intangible	1,177		697		480		1,177		685		492
Total	$	37,804	$	17,538	$	20,266	$	35,737	$	17,251	$	18,486

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table shows the estimated future amortization expense for amortizable intangible assets, in thousands:

	Core Deposit Intangibles		Mortgage Servicing Rights		Customer Relationship Intangible		Total
Nine months ending December 31, 2013	$	554	$	5,473	$	33	$	6,060
Year ending December 31,
2014	468		4,053		43		4,564
2015	267		3,243		42		3,552
2016	238		2,432		41		2,711
2017	212		1,621		40		1,873
2018	187		811		39		1,037
Thereafter	227		—		242		469

Schedule of Servicing Assets at Fair Value

The following table summarizes, in thousands, the changes in capitalized mortgage servicing rights:

	2013			2012
Balance at January 1	$	15,653		$	11,276
Originations	3,245			1,986
Amortization	(1,761		)	(1,719		)
Valuation adjustment	496			13
Balance at March 31	$	17,633		$	11,556