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Related Party Transactions - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Related Party Transaction [Line Items]          
Right-of-use assets $ 13,955   $ 13,955   $ 8,265
Operating lease liabilities 17,855   17,855   10,107
Common management          
Related Party Transaction [Line Items]          
Right-of-use assets 3,200   3,200   3,900
Operating lease liabilities 3,600   3,600   $ 4,500
Common management | Rent expense          
Related Party Transaction [Line Items]          
Related party expenses $ 434 $ 434 $ 869 $ 869