Interest Rate Contracts (Details) (USD $)					0 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Interest Rate Contract [Member] Fair Value [Member]	Dec. 31, 2011 Interest Rate Contract [Member] Fair Value [Member]	Feb. 11, 2011 Sunset Gower Sunset Bronson [Member]		Dec. 31, 2012 Sunset Gower Sunset Bronson [Member]		Jan. 11, 2012 Sunset Gower Sunset Bronson [Member]	Mar. 16, 2011 Sunset Gower Sunset Bronson [Member]	Dec. 31, 2012 Sunset Gower Sunset Bronson [Member] One-Month LIBOR [Member]		Jan. 11, 2012 Sunset Gower Sunset Bronson [Member] One-Month LIBOR [Member]	Feb. 11, 2011 Sunset Gower Sunset Bronson [Member] One-Month LIBOR [Member]	Jan. 11, 2012 Sunset Gower Sunset Bronson [Member] Interest Rate Cap [Member]	Mar. 16, 2011 Sunset Gower Sunset Bronson [Member] Interest Rate Cap [Member]
Derivative [Line Items]
Term of loan					5 years
Long-term debt	$ 580,884,000	$ 397,906,000			$ 92,000,000	[1]	$ 92,000,000	[1]
Debt instrument, basis spread on variable rate											3.50%	[1],[2]		3.50%
Interest rate cap									2.00%	3.715%			2.00%
Notional amount of interest rate cash flow hedge derivatives									42,000,000	50,000,000					42,000,000	50,000,000
Interest rate contracts	$ 71,000	$ 164,000	$ 71,000	$ 164,000

[1] On March 16, 2011, we purchased an interest rate cap in order to cap one-month LIBOR at 3.715% with respect to $50.0 million of the loan through its maturity on February 11, 2016. On January 11, 2012 we purchased an interest rate cap in order to cap one-month LIBOR at 2.00% with respect to $42.0 million of the loan through its maturity on February 11, 2016. Beginning with the payment due February 1, 2014, monthly debt service will include principal payments based on a 30-year amortization schedule, for total annual debt amortization of $1,410.

[2] Interest rate with respect to indebtedness is calculated on the basis of a 360-day year for the actual days elapsed, excluding the amortization of loan fees and costs.