Annual report pursuant to Section 13 and 15(d)

Operating Leases Operating Leases Other Information (Details)

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Operating Leases Operating Leases Other Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating cash outflows from operating leases $ 44,578 $ 43,096
Right-of-use assets obtained in exchange for operating lease liabilities $ 11,142 $ 179,944
Weighted average remaining lease term, in years 4 years 8 months 12 days 5 years 2 months 12 days
Weighted average discount rate 4.90% 4.90%