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Basis of Presentation (Acquisition) (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Variable Interest Entity    
Asset carrying amount $ 781,672,000 $ 760,013,000 [1]
LWI    
Variable Interest Entity    
Ownership percentage 51.00%  
Variable interest entity, reporting entity involvement, maximum loss exposure, amount $ 10,000,000  
LWI | Primary beneficiary    
Variable Interest Entity    
Asset carrying amount 14,979,000 14,686,000
Liabilities 8,528,000 9,176,000
LWI | Principal owner | Primary beneficiary    
Variable Interest Entity    
Liabilities $ 4,284,000 $ 4,284,000,000
[1] Derived from the audited Consolidated Balance Sheet