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Summary of Significant Accounting Policies Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease right-of-use assets, net $ 115,911 $ 22,081 $ 18,000
Operating Lease, Liability $ 116,602   $ 19,100