XML 105 R106.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Retirement Plans - Pension Plan Funded Status (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Change in benefit obligation:      
Benefit obligation at end of year $ 0    
Non-contributory defined benefit pension plan      
Change in benefit obligation:      
Benefit obligation at beginning of year 28,906 $ 31,500 $ 28,800
Service cost 121 77 127
Interest cost 1,158 1,080 1,124
Actuarial (gain) loss 2,471 (2,442) 2,665
Expenses 318 121 78
Plan termination settlements (31,800)    
Benefit obligation at end of year   28,906 31,500
Change in plan assets:      
Fair value of plan assets at beginning of year 30,545 31,387 28,216
Actual return on plan assets 2,111 467 4,387
Benefits paid (538) (1,188) (1,138)
Expenses 318 121 78
Plan termination settlements (31,800)    
Fair value of plan assets at end of year   30,545 31,387
Funded (unfunded) status   1,639 (113)
SCBT Post-retirement Benefit Plan      
Change in benefit obligation:      
Benefit obligation at beginning of year 309 337 393
Interest cost 11 11 13
Actuarial (gain) loss (33) 2 (29)
Benefits paid (33) (41) (40)
Benefit obligation at end of year 254 309 337
Change in plan assets:      
Employer contribution 33 41 40
Benefits paid (33) (41) (40)
Funded (unfunded) status $ (254) $ (309) $ (337)