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Leases - Summary of Supplemental Cash Flow Information Related to Leases (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cash paid for amounts included in the measurement of lease liabilities:      
Operating cash flows from operating leases $ 44,774 $ 47,084  
Operating cash flows from finance leases 491 429  
Financing cash flows from finance leases $ 2,588 $ 2,485 $ 1,039