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Commitments And Contingencies Escrow and Trust Deposits (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Loss Contingencies [Line Items]    
Escrow and trust deposits $ 601,000 $ 585,000
Maximum    
Loss Contingencies [Line Items]    
Cash, FDIC Insured Amount $ 250