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Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Carrying Amount    
Assets:    
Cash and Cash Equivalents $ 1,537 $ 1,163
Total Assets 1,537 1,163
Liabilities:    
Short-Term Debt 91,163 80,997
Long-Term Debt 763,997 764,519
Total 855,160 845,516
Fair Value    
Assets:    
Cash and Cash Equivalents 1,537 1,163
Total Assets 1,537 1,163
Liabilities:    
Short-Term Debt 91,163 80,997
Long-Term Debt 878,272 858,455
Total $ 969,435 $ 939,452