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Leases (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
lease
Mar. 31, 2019
USD ($)
Leases    
Lessee, Operating Lease, Existence of Option to Extend [true false] false  
Operating lease costs $ 1,441 $ 865
Non-cancelable operating lease commitments $ 20,206  
Weighted-average remaining lease term 8 years 7 months 17 days  
Weighted-average discount rate of operating leases 4.16%  
Number of financing leases | lease 0  
Minimum    
Leases    
Term of operating leases 9 months  
Maximum    
Leases    
Term of operating leases 10 years  
Average lease term of non-cancelable operating lease commitments not yet commenced 9 years 6 months