Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Operating Leases
Operating lease right-of-use assets	$ 119,795	$ 135,985
Operating lease liabilities – short-term	35,105	38,005
Operating lease liabilities – long-term	85,176	$ 98,347
Total operating lease liabilities	120,281
Finance Leases
Property, plant and equipment – gross	2,063
Accumulated depreciation	(1,010)
Property, plant and equipment – net	1,053
Accounts payable	646
Other liabilities	421
Total finance lease liabilities	$ 1,067
Weighted Average Remaining Lease Term
Operating leases	9 years 6 months
Finance leases	1 year 9 months 18 days
Weighted Average Discount Rate
Operating leases	5.83%
Finance leases	4.74%