Fair Value Measurements and Derivative Instruments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Assets [Abstract]
Derivative Assets	$ 16
Liabilities [Abstract]
Derivative Liabilities	830
Interest Rate Cap [Member]
Assets [Abstract]
Derivative Assets	16
Interest Rate Swaps [Member]
Liabilities [Abstract]
Derivative Liabilities	830
Level 1 [Member]
Assets [Abstract]
Derivative Assets	0
Liabilities [Abstract]
Derivative Liabilities	0
Level 1 [Member] | Interest Rate Cap [Member]
Assets [Abstract]
Derivative Assets	0
Level 1 [Member] | Interest Rate Swaps [Member]
Liabilities [Abstract]
Derivative Liabilities	0
Level 2 [Member]
Assets [Abstract]
Derivative Assets	16
Liabilities [Abstract]
Derivative Liabilities	830
Level 2 [Member] | Interest Rate Cap [Member]
Assets [Abstract]
Derivative Assets	16
Level 2 [Member] | Interest Rate Swaps [Member]
Liabilities [Abstract]
Derivative Liabilities	830
Level 3 [Member]
Assets [Abstract]
Derivative Assets	0
Liabilities [Abstract]
Derivative Liabilities	0
Level 3 [Member] | Interest Rate Cap [Member]
Assets [Abstract]
Derivative Assets	0
Level 3 [Member] | Interest Rate Swaps [Member]
Liabilities [Abstract]
Derivative Liabilities	$ 0