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Leases - Leases Balance Sheet (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Leases [Abstract]    
Other assets $ 165,970 $ 136,292
Accrued expenses 33,862 22,297
Other noncurrent liabilities 136,552 116,765
Total operating lease liabilities 170,414 139,062
Net property, plant and equipment 58,375 58,963
Current portion of long-term debt(a) 2,658 1,752
Long-term debt 57,968 58,543
Total finance lease liabilities $ 60,626 $ 60,295
Weighted average remaining lease term, operating leases 12 years 7 months 6 days 15 years 3 months 18 days
Weighted average remaining lease term, finance leases 27 years 27 years 6 months
Weighted average discount rate, operating leases, percent 3.46% 3.94%
Weighted average discount rate, finance leases, percent 4.57% 4.56%