Rendering

Component: (Network and Table)
Network
2416405 - Disclosure - Retirement Plans (Net Periodic Pension Cost (Income)) (Details)
(http://www.chemicalbankmi.com/role/RetirementPlansNetPeriodicPensionCostIncomeDetails)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000019612 (http://www.sec.gov/CIK)
Defined Benefit Plan Disclosure [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
Pension PlanPostretirement PlanPension PlanPostretirement PlanPension PlanPostretirement Plan
Components of net periodic benefit cost (income) for the Corporation's qualified and nonqualified pension plans and nonqualified postretirement benefits plan
 
 
 
 
 
 
Service cost
1,041,000  
9,000  
1,021,000  
16,000  
944,000  
18,000  
Interest cost
5,335,000  
132,000  
5,242,000  
133,000  
5,167,000  
142,000  
Expected return on plan assets
(8,562,000) 
0  
(8,645,000) 
0  
(8,314,000) 
0  
Amortization of prior service credit
0  
117,000  
(5,000) 
130,000  
(1,000) 
130,000  
Amortization of net actuarial loss (gain)
2,259,000  
(100,000) 
3,962,000  
(1,000) 
2,159,000  
(104,000) 
Net cost (income)
73,000  
 
158,000  
 
1,575,000  
 
278,000  
 
(45,000) 
 
186,000