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Leases (Lease Cost and Other Information) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating lease cost $ 4,373 $ 5,834
Variable lease, cost (credit), net (305) 1,400
Amortization costs related to the intangible assets and liabilities 834 651
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases (in thousands) $ 3,261 $ 3,223
Weighted Average Remaining Lease Term    
Operating leases 47 years 47 years
Weighted Average Discount Rate    
Operating leases 4.98% 4.98%