Basis and Summary of Significant Accounting Policies - Components of Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Prepaid Expenses	$ 75,524	$ 75,485
Assets Held for Sale	8,749	8,866
Deferred Tax Asset	5,912	5,912
Income Tax Receivable	8,672	11,884
Other Assets	22,073	18,881
Prepaid Expense and Other Assets	$ 120,930	$ 121,028