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Components of Lease Expense (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Lease Cost [Abstract]  
Operating lease cost $ 46,515
Variable lease cost 17,184
Short-term lease cost 6,617
Total operating lease cost 70,316
Amortization of lease assets 2,389
Interest on lease liabilities 439
Total finance lease cost $ 2,828