Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Net carrying value of intangible assets

	September 30, 2012		December 31, 2011		September 30, 2011
	(In thousands)
Goodwill	$	113,414	$	113,414	$	113,414
Other intangible assets:
Core deposit intangible assets	$	6,777	$	7,879	$	8,261
Mortgage servicing rights	3,466		3,593		3,561
Non-compete agreements	—		—		27
Total other intangible assets	$	10,243	$	11,472	$	11,849

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

	September 30, 2012		December 31, 2011		September 30, 2011
	(In thousands)
Gross original amount	$	26,468	$	26,468	$	26,468
Accumulated amortization	19,691		18,589		18,207
Carrying amount	$	6,777	$	7,879	$	8,261
Amortization expense for the three months ended September 30	$	367			$	382
Amortization expense for the nine months ended September 30	$	1,102			$	1,145

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

	September 30, 2012		December 31, 2011		September 30, 2011
	(In thousands)
Net carrying value of MSRs	$	3,466	$	3,593	$	3,561
Fair value of MSRs	$	4,277	$	4,757	$	4,437
Loans serviced for others that have servicing rights capitalized	$	901,052	$	902,812	$	900,197

Activity for capitalized MSRs

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(In thousands)
Balance at beginning of period	$	3,463		$	3,577		$	3,593		$	3,782
Additions	503			317			1,706			1,028
Amortization	(500		)	(333		)	(1,833		)	(1,249		)
Balance at end of period	$	3,466		$	3,561		$	3,466		$	3,561