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Long-Term Obligations (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
LOng-Term Obligations Disclosure [Abstract]    
Line of Credit Facility, Maximum Borrowing Capacity $ 150.0  
Line of Credit, Current 0.0 $ 150.0
Line of Credit Facility, Remaining Borrowing Capacity $ 150.0  
Line of Credit Facility, Expiration Date Nov. 08, 2022