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Leases - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]      
Weighted-average remaining lease term for lease portfolio 9 years 3 months 18 days    
Weighted average discount rate (as a percent) 4.90%    
Lease expense $ 18,000 $ 13,900 $ 18,500
Cash payments for operating leases 17,100 11,000  
2020 17,452 15,600  
2021 16,994 17,000  
2022 16,023 16,000  
2023 14,161 14,800  
2024 11,892 13,100  
Thereafter $ 66,809 $ 76,000  
Minimum      
Lessee, Lease, Description [Line Items]      
Remaining lease term 1 year    
Maximum      
Lessee, Lease, Description [Line Items]      
Remaining lease term 15 years