Employee Benefits - Actuarial Weighted Average Assumptions Used in Determining Benefit Obligation (Details)		Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Discount rate		3.25%	4.31%
Rate of compensation increase	[1]	0.00%	0.00%

[1] Rate of compensation increase is not applicable for 2019 and 2018 due to the amendment to freeze benefit accruals under the qualified and nonqualified defined benefit pension plans effective March 31, 2016.