XML 109 R76.htm IDEA: XBRL DOCUMENT v3.24.0.1
Short-Term and Long-Term Borrowings - Summary of Lines of Credit (Details) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]    
Line Limit $ 340,000,000  
Amount Outstanding 81,422,000 $ 8,204,000
Letters of Credit 9,132,000  
Amount Available 249,446,000 322,223,000
OTC Credit Agreement    
Line of Credit Facility [Line Items]    
Line Limit 170,000,000  
Amount Outstanding 0  
Letters of Credit 0  
Amount Available 170,000,000 170,000,000
OTP Credit Agreement    
Line of Credit Facility [Line Items]    
Line Limit 170,000,000  
Amount Outstanding 81,422,000  
Letters of Credit 9,132,000  
Amount Available $ 79,446,000 $ 152,223,000