Segment Information - Reconciliation to Income Before Provision for Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Reconciliation of Adjusted OIBDA to income from continuing operations before provision (benefit) for income taxes on a consolidated basis    
Adjusted OIBDA $ 231,218 $ 228,524
Less: Depreciation and Amortization 85,951 86,433
Loss on disposal/write-down of property, plant and equipment (excluding real estate), net 333 1,152
REIT Costs 0 8,323
Interest Income (Expense), Net 64,898 62,312
Other Expense, Net 22,349 5,317
Income from Continuing Operations Before Provision for Income Taxes and Gain on Sale of Real Estate $ 57,687 $ 64,987