Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

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:

	Years Ended December 31,
	2012			2011
				(As Revised)
	(In thousands)
Balance at beginning of period	$	68,305		$	83,605
Additions, net of reductions*	5,057			14,254
Accretion recognized in interest income	(23,972		)	(29,804		)
Reclassification from nonaccretable difference	—			250
Balance at end of period	$	49,390		$	68,305

* Represents an increase in estimated additional contractual interest expected to be collected as a result of maturing acquired loans that have been renewed or extended, net of a reduction in contractual interest resulting from the early payoff of acquired loans.