Accrued Expenses (Schedule of Accrued Expenses) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accrued Expenses [Abstract]
Salaries and benefits	$ 9,938	$ 19,838
Real estate and property taxes	9,390	9,598
Unpaid capital expenditures	7,387	14,669
Other	27,460	23,513
Total accrued expenses	$ 54,175	$ 67,618