Regulatory Capital (Tables)

9 Months Ended

Sep. 30, 2016

Banking and Thrift [Abstract]

Corporation's and Chemical Bank's actual capital amounts and ratios with the quantitative measures established by regulation to ensure capital adequacy

The summary below compares the actual capital amounts and ratios with the quantitative measures established by regulation to ensure capital adequacy:

	Actual				Minimum Required for Capital Adequacy Purposes				Minimum Required for Capital Adequacy Purposes Plus Capital Conservation Buffer				Required to be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio
September 30, 2016
Total Capital to Risk-Weighted Assets
Corporation	$	1,491,389	11.1	%	$	1,074,506	8.0	%	$	1,155,093	8.6	%	N/A		N/A
Chemical Bank	825,504		10.8		614,281		8.0		660,352		8.6		$	767,851	10.0	%
Talmer Bank and Trust	719,213		12.7		453,090		8.0		487,071		8.6		566,362		10.0
Tier 1 Capital to Risk-Weighted Assets
Corporation	1,413,464		10.5		805,879		6.0		886,467		6.6		N/A		N/A
Chemical Bank	752,957		9.8		460,711		6.0		506,782		6.6		614,281		8.0
Talmer Bank and Trust	713,835		12.6		339,817		6.0		373,799		6.6		453,090		8.0
Common Equity Tier 1 Capital to Risk-Weighted Assets
Corporation	1,413,464		10.5		604,409		4.5		684,997		5.1		N/A		N/A
Chemical Bank	752,957		9.8		345,533		4.5		391,604		5.1		499,103		6.5
Talmer Bank and Trust	713,835		12.6		254,863		4.5		288,845		5.1		368,135		6.5
Leverage Ratio
Corporation	1,413,464		12.8		442,317		4.0		442,317		4.0		N/A		N/A
Chemical Bank	752,957		8.1		373,897		4.0		373,897		4.0		467,371		5.0
Talmer Bank and Trust	713,835		10.9		262,318		4.0		262,318		4.0		327,898		5.0
December 31, 2015
Total Capital to Risk-Weighted Assets
Corporation	$	841,257	11.8	%	$	571,509	8.0	%	N/A		N/A		N/A		N/A
Chemical Bank	830,294		11.7		570,073		8.0		N/A		N/A		$	712,591	10.0	%
Tier 1 Capital to Risk-Weighted Assets
Corporation	767,929		10.7		428,631		6.0		N/A		N/A		N/A		N/A
Chemical Bank	756,966		10.6		427,555		6.0		N/A		N/A		570,073		8.0
Common Equity Tier 1 Capital to Risk-Weighted Asset
Corporation	753,815		10.6		321,474		4.5		N/A		N/A		N/A		N/A
Chemical Bank	756,966		10.6		320,666		4.5		N/A		N/A		463,184		6.5
Leverage Ratio
Corporation	767,929		8.6		356,396		4.0		N/A		N/A		N/A		N/A
Chemical Bank	756,966		8.5		355,911		4.0		N/A		N/A		444,888		5.0