Accumulated Other Comprehensive Loss (Changes in AOCI) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2013	$ (3,265)
Other Comprehensive (Loss) Income Before Reclassifications	(6,187)
Amounts Reclassified from Accumulated Other Comprehensive Loss	2,908
Net Current Period Other Comprehensive (Loss) Income	(3,279)
Balance as of June 30, 2014	(6,544)
Interest Rate Protection Agreements
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2013	(3,481)
Other Comprehensive (Loss) Income Before Reclassifications	(6,309)
Amounts Reclassified from Accumulated Other Comprehensive Loss	2,908
Net Current Period Other Comprehensive (Loss) Income	(3,401)
Balance as of June 30, 2014	(6,882)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2013	78
Other Comprehensive (Loss) Income Before Reclassifications	(5)
Amounts Reclassified from Accumulated Other Comprehensive Loss	0
Net Current Period Other Comprehensive (Loss) Income	(5)
Balance as of June 30, 2014	73
Comprehensive Income Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2013	138
Other Comprehensive (Loss) Income Before Reclassifications	127
Amounts Reclassified from Accumulated Other Comprehensive Loss	0
Net Current Period Other Comprehensive (Loss) Income	127
Balance as of June 30, 2014	$ 265