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Leases (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]      
ROU assets $ 33,316 $ 31,724  
Current lease liability 10,689    
Long term lease liability 23,470    
Lease Liabilities 34,159 $ 32,579  
Operating lease cost 3,943    
Minimum rental commitments 2019     $ 11,931
Minimum rental commitments 2020     8,322
Minimum rental commitments 2021     5,888
Minimum rental commitments 2022     2,898
Minimum rental commitments 2023     2,064
Minimum rental commitments thereafter     $ 7,659
Future minimum lease payments 2019 9,266    
Future minimum lease payments 2020 9,582    
Future minimum lease payments 2021 6,995    
Future minimum lease payments 2022 3,251    
Future minimum lease payments 2023 2,453    
Future minimum lease payments after 2023 7,688    
Total lease payments 39,235    
Less: Interest $ 5,076    
Weighted-average remaining lease term (years) 6 years 2 months 12 days    
Weighted-average discount rate 3.97%    
Operating cash flows from operating leases $ 3,363    
Leased assets obtained in exchange for new operating lease liabilities $ 4,563    
Minimum [Member]      
Lessee, Lease, Description [Line Items]      
Remaining lease term 1 year    
Renewal periods 1 year    
Maximum [Member]      
Lessee, Lease, Description [Line Items]      
Remaining lease term 10 years    
Renewal periods 5 years