Subsequent Events Subsequent Events (Details) (USD $)	1 Months Ended		1 Months Ended		1 Months Ended	60 Months Ended	1 Months Ended	60 Months Ended	1 Months Ended	84 Months Ended
	Nov. 30, 2011	Apr. 12, 2012	May 31, 2012 Line of Credit Facility, 2012 Modification [Member]	Apr. 30, 2012 Line of Credit Facility, 2012 Modification [Member]	Apr. 30, 2012 Line of Credit Facility, 2012 Modification [Member] Debt Instrument, Name, Revolving Credit Facility [Member]	May 01, 2017 Line of Credit Facility, 2012 Modification [Member] Debt Instrument, Name, Revolving Credit Facility [Member]	Apr. 30, 2012 Line of Credit Facility, 2012 Modification [Member] Debt Instrument, Name, 5 Year Term Loan [Member]	May 01, 2017 Line of Credit Facility, 2012 Modification [Member] Debt Instrument, Name, 5 Year Term Loan [Member]	Apr. 30, 2012 Line of Credit Facility, 2012 Modification [Member] Debt Instrument, Name, 7 Year Term Loan [Member]	May 01, 2019 Line of Credit Facility, 2012 Modification [Member] Debt Instrument, Name, 7 Year Term Loan [Member]
Subsequent Event [Line Items]
Loan Term		3
Loan Funding Committment		$ 15,000,000
Loan Committment, Amount Funded At Closing		5,000,000
Note Receivable Interest Rate		13.50%
Line of Credit Facility, Maximum Borrowing Capacity				320,000,000
Number of basis points over LIBOR					0.014		0.014		0.015
Derivative, Fixed Interest Rate									3.04%
Term Loans, Outstanding Balance				120,000,000			80,000,000		40,000,000
Debt Instrument, Maturity Date Range, End	4					5		5		7
Debt Instrument, Maturity Date Range, End, Extension					1
Increase in total credit facility			130,000,000
Credit Facility, Current Revolving Borrowing Capacity					$ 200,000,000