XML 131 R124.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Nonqualified Benefit Plans Future Benefit Payments (Details 4) - Supplemental Employee Retirement Plan - Nonqualified Plan - Unfunded Plan
$ in Thousands
Dec. 31, 2019
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2020 $ 7,774
2021 7,795
2022 7,023
2023 7,219
2024 7,597
2025-2029 $ 35,998