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Employee Benefit Plans - Schedule of Defined Benefit Plan Amounts in Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Retirement Benefits [Abstract] |  |  |
Current year actuarial (gain) loss | $ 2,213 | $ 2,917 | $ (520)
Amortization of actuarial loss | (340) | (266) | (258)
Total recognized in other comprehensive (income) loss | 1,873 | 2,651 | (778)
Total recognized in net periodic benefit cost and other comprehensive (income) loss | $ 4,048 | $ 3,579 | $ 212

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