Segment Information (Tables)

12 Months Ended

Dec. 31, 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 years ended December 31, 2014, 2013, and 2012:

(In thousands)										FirstMerit
December 31, 2014	Commercial		Retail		Wealth		Other			Consolidated
OPERATIONS:
Net interest income/(expense)	$	421,136	$	378,597	$	19,836	$	(44,001	)	$	775,568
Provision for loan losses	2,898		39,618		1,895		7,868			52,279
Noninterest income	91,483		106,356		55,800		27,885			281,524
Noninterest expense	240,142		354,305		51,269		19,203			664,919
Net income/(loss)	175,227		59,169		14,606		(11,051		)	237,951
AVERAGES:
Assets	9,265,088		5,632,881		271,975		9,248,267			24,418,211
Loans	9,262,224		5,305,513		261,321		62,257			14,891,315
Earnings assets	9,549,341		5,328,548		261,321		6,363,537			21,502,747
Deposits	6,679,007		11,484,769		1,089,068		275,591			19,528,435
Economic capital	743,071		353,098		58,106		1,635,864			2,790,139

(In thousands)											FirstMerit
December 31, 2013	Commercial		Retail		Wealth			Other			Consolidated
OPERATIONS:
Net interest income/(expense)	$	408,006	$	349,433	$	17,192		$	(63,846	)	$	710,785
Provision for loan losses	17,072		16,151		(692		)	1,153			33,684
Noninterest income	83,933		114,679		48,289			23,442			270,343
Noninterest expense	209,936		330,875		54,196			89,246			684,253
Net income/(loss)	172,206		76,105		7,784			(72,411		)	183,684
AVERAGES:
Assets	8,397,357		4,746,277		259,601			8,086,540			21,489,775
Loans	8,292,805		4,367,701		226,152			62,008			12,948,666
Earnings assets	8,480,005		4,392,937		226,179			5,393,874			18,492,995
Deposits	5,572,287		10,749,725		826,794			152,782			17,301,588
Economic capital	602,561		256,362		72,244			1,477,698			2,408,865

(In thousands)											FirstMerit
December 31, 2012	Commercial		Retail		Wealth			Other			Consolidated
OPERATIONS:
Net interest income/(expense)	$	258,575	$	207,907	$	17,444		$	(12,096	)	$	471,830
Provision for loan losses	32,319		10,008		(626		)	12,997			54,698
Noninterest income	67,606		103,279		32,996			19,723			223,604
Noninterest expense	159,525		221,297		39,296			30,819			450,937
Net income/(loss)	87,318		51,922		7,650			(12,784		)	134,106
AVERAGES:
Assets	6,424,226		2,952,280		238,805			5,005,316			14,620,627
Loans	6,391,189		2,674,997		225,018			65,876			9,357,080
Earnings assets	6,493,713		2,707,632		225,044			3,646,302			13,072,691
Deposits	3,284,722		7,416,982		709,786			142,308			11,553,798
Economic capital	404,005		212,409		49,313			942,381			1,608,108