Regulatory Capital (Tables)

3 Months Ended

Mar. 31, 2014

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

	Actual				Minimum Required for Capital Adequacy Purposes				Required to be Well Capitalized Under Prompt Corrective Action Regulations
	Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio
	(Dollars in thousands)
March 31, 2014
Total Capital to Risk-Weighted Assets:
Corporation	$	659,644	13.8	%	$	381,146	8.0	%	N/A		N/A
Chemical Bank	589,254		12.4		380,542		8.0		$	475,678	10.0	%
Tier 1 Capital to Risk-Weighted Assets:
Corporation	599,856		12.6		190,573		4.0		N/A		N/A
Chemical Bank	529,560		11.1		190,271		4.0		285,407		6.0
Leverage Ratio:
Corporation	599,856		9.9		243,070		4.0		N/A		N/A
Chemical Bank	529,560		8.7		242,939		4.0		303,673		5.0
December 31, 2013
Total Capital to Risk-Weighted Assets:
Corporation	$	649,836	14.0	%	$	371,465	8.0	%	N/A		N/A
Chemical Bank	579,494		12.5		370,881		8.0		$	463,601	10.0	%
Tier 1 Capital to Risk-Weighted Assets:
Corporation	591,535		12.7		185,732		4.0		N/A		N/A
Chemical Bank	521,283		11.2		185,440		4.0		278,160		6.0
Leverage Ratio:
Corporation	591,535		9.9		239,010		4.0		N/A		N/A
Chemical Bank	521,283		8.7		238,884		4.0		298,605		5.0
March 31, 2013
Total Capital to Risk-Weighted Assets:
Corporation	$	561,092	13.3	%	$	337,508	8.0	%	N/A		N/A
Chemical Bank	545,361		13.0		336,576		8.0		$	420,720	10.0	%
Tier 1 Capital to Risk-Weighted Assets:
Corporation	507,985		12.0		168,754		4.0		N/A		N/A
Chemical Bank	492,398		11.7		168,288		4.0		252,432		6.0
Leverage Ratio:
Corporation	507,985		8.8		230,992		4.0		N/A		N/A
Chemical Bank	492,398		8.5		230,544		4.0		288,179		5.0