Acquisitions (Tables)

3 Months Ended

Mar. 31, 2013

Business Combinations [Abstract]

Activity for accretable yield includes contractually due interest of acquired loans

Activity for the accretable yield, which includes contractually due interest for acquired loans that have been renewed or extended since the date of acquisition and continue to be accounted for in loan pools in accordance with ASC 310-30, follows:

	Three Months Ended
	March 31,
	2013			2012
	(In thousands)
Balance at beginning of period	$	49,390		$	68,305
Additions (reductions)*	(491		)	4,006
Accretion recognized in interest income	(4,940		)	(6,638		)
Reclassification from nonaccretable difference	125			—
Balance at end of period	$	44,084		$	65,673

* Represents additions of estimated contractual interest expected to be collected from acquired loans being renewed or extended, less reductions in contractual interest resulting from the early payoff of acquired loans.