Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Net carrying value of intangible assets

The following table shows the net carrying value of the Corporation’s intangible assets:

	March 31, 2013		December 31, 2012		March 31, 2012
	(In thousands)
Goodwill	$	120,164	$	120,164	$	113,414
Other intangible assets:
Core deposit intangible assets	$	11,417	$	11,910	$	7,512
Mortgage servicing rights	3,485		3,478		3,427
Total other intangible assets	$	14,902	$	15,388	$	10,939

Carrying amount, accumulated amortization and amortization expense of core deposit intangible assets

The following table sets forth the carrying amount, accumulated amortization and amortization expense of core deposit intangible assets that are amortizable and arose from business combinations or other acquisitions:

	March 31, 2013		December 31, 2012		March 31, 2012
	(In thousands)
Gross original amount	$	18,659	$	18,659	$	26,468
Accumulated amortization	7,242		6,749		18,956
Carrying amount	$	11,417	$	11,910	$	7,512
Amortization expense for the three months ended March 31	$	493			$	367

Net carrying value, fair value of MSRs and loans Corporation servicing for others

The following shows the net carrying value and fair value of MSRs and the total loans that the Corporation is servicing for others:

	March 31, 2013		December 31, 2012		March 31, 2012
	(In thousands)
Net carrying value of MSRs	$	3,485	$	3,478	$	3,427
Fair value of MSRs	$	5,326	$	4,716	$	5,158
Loans serviced for others that have servicing rights capitalized	$	907,823	$	906,314	$	904,191

Activity for capitalized MSRs

The following table shows the activity for capitalized MSRs:

	Three Months Ended March 31,
	2013			2012
	(In thousands)
Balance at beginning of period	$	3,478		$	3,593
Additions	515			534
Amortization	(508		)	(700		)
Balance at end of period	$	3,485		$	3,427