Accumulated Other Comprehensive Loss (Amounts Reclassified from AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Mark-to-Market Loss on Interest Rate Protection Agreements	$ (12,990)	$ 0
Interest Expense	16,642us-gaap_InterestExpense	19,046us-gaap_InterestExpense
Total	(22,424)us-gaap_NonoperatingIncomeExpense	(19,148)us-gaap_NonoperatingIncomeExpense
Reclassification Out Of Accumulated Other Comprehensive Income \| Interest Rate Protection Agreements
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total	14,178	1,361
Interest Rate Contract \| Reclassification Out Of Accumulated Other Comprehensive Income \| Interest Rate Protection Agreements
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Expense	131	628
Interest Rate Swap \| Reclassification Out Of Accumulated Other Comprehensive Income \| Interest Rate Protection Agreements
Accumulated Other Comprehensive Income (Loss) [Line Items]
Mark-to-Market Loss on Interest Rate Protection Agreements	12,990	0
Interest Expense	$ 1,057	$ 733

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

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-Publisher FASB

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Amount of the cost of borrowed funds accounted for as interest expense.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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-Publisher FASB

-Name Accounting Standards Codification

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