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Leases - Cash flow (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Leases      
Operating cash flows from operating leases $ 13,683 $ 8,462 $ 4,466
Financing cash flows from finance lease 2,224 17,829  
Operating cash flows from finance leases 776 171  
Right-of-use assets obtained in exchange for operating lease obligations $ 645 76,811 $ 17,389
Right-of-use assets obtained in exchange for finance lease obligations   $ 41,382