Other Real Estate Owned (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Covered OREO
Beginning balance	$ 12,942		$ 45,534
Acquired OREO	0		0
Transfers of loans	7,794		7,302
Capitalized improvements	0		0
Impairments	(3,242)	[1]	(7,623)	[1]
Dispositions	(10,428)		(32,214)
Other	(698)		(57)
Ending balance	6,368		12,942
Not Covered OREO
Beginning balance	39,945		44,717
Acquired OREO	0		13,527
Transfers of loans	8,529		11,164
Capitalized improvements	0		0
Impairments	(1,786)	[1]	(1,745)	[1]
Dispositions	(18,379)		(28,027)
Other	(205)		309
Ending balance	28,104		39,945
Total OREO
Beginning balance	52,887		90,251
Acquired OREO	0		13,527
Transfers of loans	16,323		18,466
Capitalized improvements	0		0
Impairments	(5,028)	[1]	(9,368)	[1]
Dispositions	(28,807)		(60,241)
Other	(903)		252
Ending balance	$ 34,472		$ 52,887

[1] Of the total impairment charges of $7,623 recorded for covered OREO in 2013, $1,525 was included in the Consolidated Statements of Income for the year ended December 31, 2013, while the remaining $6,098 increased the FDIC loss-share indemnification asset. Of the total impairment charges of $3,242 recorded for covered OREO in 2014, $648 was included in the Consolidated Statements of Income for the year ended December 31, 2014, while the remaining $2,594 increased the FDIC loss-share indemnification asset.