XML 83 R69.htm IDEA: XBRL DOCUMENT v3.10.0.1
Retirement Plans - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Retirement Plans      
Noncontributory benefit pension plans covering active employees 1.00%    
Defined Benefit Plan, Plan Assets, Payment for Settlement   $ 23,912  
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement   23,912  
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax   $ 13,476  
Amortization period 17 years    
Amortization of retirement benefits, net of tax $ 5,270    
Defined Benefit Plan, Plan Assets, Accounting Policy Election, Measurement Date Dec. 31, 2018 Dec. 31, 2017  
Post-Retirement Life Insurance Plan      
Retirement Plans      
Amortization period 4 years    
Amortization of retirement benefits, net of tax $ 0    
Domestic Plan [Member]      
Retirement Plans      
Settlement loss 0 $ 13,476 $ 0
Expected contribution to be made by CTS 100    
Foreign Plan [Member]      
Retirement Plans      
Settlement loss 0 $ 0 $ 0
Expected contribution to be made by CTS $ 271