Debt (Narrative) (Details) (USD $)				12 Months Ended		0 Months Ended								0 Months Ended		12 Months Ended			0 Months Ended		9 Months Ended	12 Months Ended						0 Months Ended	12 Months Ended				0 Months Ended					9 Months Ended
	Dec. 31, 2013 CollateralizedProperties	May 31, 2013	Dec. 31, 2012 CollateralizedProperties	Dec. 31, 2013 Minimum [Member]	Dec. 31, 2013 Maximum [Member]	Nov. 26, 2013 Floating Rate Loan [Member]	Nov. 26, 2013 Fixed Rate Indebtedness [Member]	Jun. 19, 2013 Mercado at Scottsdale Ranch [Member]	Dec. 23, 2013 Woodlake Note [Member]	Dec. 16, 2013 Anthem Note [Member]	Sep. 26, 2013 Industrial Note [Member]	Sep. 26, 2013 Uptown Note [Member]	Sep. 24, 2013 Terravita Note [Member]	Sep. 24, 2013 Terravita Note [Member] London Interbank Offered Rate (LIBOR) [Member]	May 31, 2013 Pinnacle Note [Member]	Dec. 31, 2013 Floating Rate Notes [Member] loan	Dec. 31, 2013 Floating Rate Notes [Member] Minimum [Member]	Dec. 31, 2013 Floating Rate Notes [Member] Maximum [Member]	Aug. 08, 2012 Floating Rate Notes [Member] Paradise Plaza [Member]	Dec. 31, 2013 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017	Sep. 30, 2013 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member]	Dec. 31, 2012 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member]	Dec. 31, 2013 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member]	Sep. 30, 2013 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member] Minimum [Member]	Dec. 31, 2012 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member] Minimum [Member]	Sep. 30, 2013 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member] Maximum [Member]	Dec. 31, 2012 Floating Rate Notes [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member] Maximum [Member]	Dec. 28, 2012 Fixed Rate Notes [Member]	Dec. 31, 2013 Fixed Rate Notes [Member] Pinnacle of Scottsdale [Member]	Dec. 22, 2011 Fixed Rate Notes [Member] Pinnacle of Scottsdale [Member]	Dec. 31, 2012 Fixed Rate Notes [Member] Shops at Starwood Phase III [Member]	Feb. 04, 2013 Revolving Credit Facility [Member]	Feb. 04, 2013 Revolving Credit Facility [Member] Base Rate [Member]	Feb. 04, 2013 Revolving Credit Facility [Member] London Interbank Offered Rate (LIBOR) [Member]	Dec. 31, 2013 Revolving Credit Facility [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017	Feb. 04, 2013 Term Loan [Member]	Mar. 31, 2013 Term Loan [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017	Sep. 30, 2013 Term Loan [Member] Unsecured line of credit, LIBOR plus 1.75% to 2.50%, due February 3, 2017 London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 264,300,000		$ 190,600,000													$ 84,800,000
Notes payable	264,277,000		190,608,000																			69,000,000	84,800,000							14,100,000	1,400,000
Stated interest rate		5.695%						5.87%	3.80%	4.99%	3.76%	4.97%			4.2805%															5.965%	5.00%						0.84%
Noncash or Part Noncash Acquisition, Other Liabilities Assumed								932,000
Number of collateralized properties (in collateralized properties)	19		27
Carrying value of collateralized properties	161,100,000		161,800,000
Face amount of debt		14,100,000						11,100,000	6,500,000	15,100,000	37,000,000	16,500,000	10,500,000		20,200,000				9,200,000																	50,000,000	50,000,000
Extinguishment of Debt, Amount						26,900,000	10,100,000
Line of Credit Facility, Expanded Maximum Borrowing Capacity																																225,000,000
Credit facility, maximum borrowing capacity																																125,000,000
Credit facility, amount outstanding																				134,800,000
Credit facility, remaining borrowing capacity																																			40,200,000
Description of variable rate basis														LIBOR		one-month LIBOR	LIBOR	LIBOR	prime		LIBOR	LIBOR											Base Rate	LIBOR				LIBOR
Basis spread on variable rate														2.00%		0.167%	1.75%	2.50%						1.75%	1.75%	2.50%	2.50%						0.50%	1.00%
Basis spread below variable rate																			2.00%
Imputed interest rate								3.052%											4.13%
Debt discount																			1,300,000
Monthly payment																												5,780	91,073
Principal payment																												300,000
Interest payment																												$ 52,000
Effective interest rate																												4.71%
Number of loans (in loans)																1
Credit facility, commitment fee				0.25%	0.35%
Credit facility, usage				50.00%	50.00%