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

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets

The gross carrying amount of other intangible assets and the associated accumulated amortization at March 31, 2016, and December 31, 2015, are presented in the table below, in thousands:

	March 31, 2016						December 31, 2015
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortizing intangible assets:
Core deposit intangibles	$	43,504	$	17,345	$	26,159	$	37,118	$	15,460	$	21,658
Mortgage servicing rights	46,818		16,368		30,450		45,744		15,430		30,314
Customer relationship intangible	1,176		825		351		1,177		815		362
Commercial servicing rights	6,071		1,611		4,460		5,685		1,074		4,611
Total	$	97,569	$	36,149	$	61,420	$	89,724	$	32,779	$	56,945

Schedule of Estimated Future Amortization Expense of Amortizable Intangible Assets

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

	Core Deposit Intangibles		Mortgage Servicing Rights		Customer Relationship Intangible		Commercial Servicing Rights		Total
Nine months ending December 31, 2016	$	3,716	$	6,778	$	31	$	720	$	11,245
Year ending December 31,
2017	4,419		5,918		40		931		11,308
2018	3,909		5,073		39		837		9,858
2019	3,426		4,227		38		638		8,329
2020	2,982		3,382		36		455		6,855
2021	2,463		2,536		35		392		5,426
Thereafter	5,244		2,536		132		487		8,399
Total	$	26,159	$	30,450	$	351	$	4,460	$	61,420

Summary of Changes in Servicing Rights

The following table summarizes, in thousands, the changes in capitalized commercial servicing rights for the three months ended March 31, 2016, and March 31, 2015:

	2016			2015
Balance at January 1	$	4,611		$	—
Purchased commercial servicing rights	190			4,255
Originations	195			132
Amortization	(536		)	(215		)
Balance at March 31	$	4,460		$	4,172
Fair value of commercial servicing rights	$	4,899		$	4,429
Commercial servicing rights, net to servicing portfolio	2.35		%	2.87		%

The following table summarizes, in thousands, the changes in capitalized mortgage servicing rights for the three months ended March 31, 2016, and March 31, 2015:

	2016			2015
Balance at January 1	$	30,314		$	24,984
Originations	2,395			2,686
Amortization	(2,259		)	(2,175		)
Balance at March 31	$	30,450		$	25,495
Fair value of mortgage servicing rights	$	38,944		$	34,492
Mortgage servicing rights, net to servicing portfolio	0.74		%	0.71		%