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Short-Term Borrowings and Long-Term Debt - Aggregate Annual Maturities of Long-Term Debt Obligations (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
2020 $ 0  
2021 0  
2022 0  
2023 0  
2024 348,348  
2025 and thereafter 495,280  
Total $ 843,628 $ 347,987