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Leases (Supplemental Cash Flow Information) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Leases [Abstract]    
Operating cash flows from operating leases $ 15,277 $ 14,499
Right-of-use assets obtained in exchange for operating lease obligations $ 9,274 $ 5,357