Segment Information (Tables)

6 Months Ended

Jun. 30, 2014

Segment Reporting [Abstract]

Lines of business results and key performance measures

The following tables present a summary of financial results as of and for the three and six months endedJune 30, 2014 and June 30, 2013:

																				FirstMerit
	Commercial					Retail				Wealth				Other						Consolidated
June 30, 2014	QTD			YTD		QTD		YTD		QTD		YTD		QTD			YTD			QTD		YTD
OPERATIONS:
Net interest income (loss)	$	106,924		$	211,987	$	94,879	$	188,129	$	4,799	$	9,477	$	(11,025	)	$	(20,114	)	$	195,577	$	389,479
Provision (recapture) for loan losses	(4,874		)	167		14,905		17,522		396		351		4,826			11,750			15,253		29,790
Noninterest income	26,681			47,987		25,345		52,381		14,052		27,516		6,482			11,947			72,560		139,831
Noninterest expense	61,230			123,215		87,603		183,377		12,370		25,097		6,197			5,044			167,400		336,733
Net income (loss)	50,211			88,784		11,515		25,747		3,955		7,504		(6,162		)	(9,061		)	59,519		112,974
AVERAGES:
Assets	$	9,192,463		$	9,132,758	$	5,541,566	$	5,495,965	$	258,845	$	250,279	$	9,298,402		$	9,337,457		$	24,291,276	$	24,216,459

																				FirstMerit
	Commercial				Retail				Wealth					Other						Consolidated
June 30, 2013	QTD		YTD		QTD		YTD		QTD			YTD		QTD			YTD			QTD		YTD
OPERATIONS:
Net interest income (loss)	$	114,557	$	182,947	$	95,904	$	145,658	$	4,288		$	8,441	$	(16,718	)	$	(27,667	)	$	198,031	$	309,379
Provision (recapture) for loan losses	2,120		6,886		2,101		6,174		(42		)	166		3,130			4,030			7,309		17,256
Noninterest income	20,895		40,127		33,330		57,718		12,821			21,131		2,393			7,856			69,439		126,832
Noninterest expense	51,891		94,918		85,512		138,419		13,832			24,006		37,653			37,691			188,888		295,034
Net income (loss)	52,680		78,569		26,919		38,074		2,027			3,379		(33,176		)	(34,226		)	48,450		85,796
AVERAGES:
Assets	$	8,852,267	$	7,800,594	$	5,006,423	$	4,016,956	$	263,454		$	250,206	$	8,688,558		$	6,846,825		$	22,810,702	$	18,914,581