Accumulated Other Comprehensive Loss (Changes in AOCI) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2012	$ (6,557)
Other Comprehensive Loss Before Reclassifications	(166)
Amounts Reclassified from Accumulated Other Comprehensive Loss	2,908
Net Current Period Other Comprehensive Income (Loss)	2,742
Balance as of September 30, 2013	(3,815)
Interest Rate Protection Agreements
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2012	(7,008)
Other Comprehensive Loss Before Reclassifications	0
Amounts Reclassified from Accumulated Other Comprehensive Loss	2,908
Net Current Period Other Comprehensive Income (Loss)	2,908
Balance as of September 30, 2013	(4,100)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2012	138
Other Comprehensive Loss Before Reclassifications	(14)
Amounts Reclassified from Accumulated Other Comprehensive Loss	0
Net Current Period Other Comprehensive Income (Loss)	(14)
Balance as of September 30, 2013	124
Comprehensive Income (Loss) Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of December 31, 2012	313
Other Comprehensive Loss Before Reclassifications	(152)
Amounts Reclassified from Accumulated Other Comprehensive Loss	0
Net Current Period Other Comprehensive Income (Loss)	(152)
Balance as of September 30, 2013	$ 161