Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 01, 2017
Subsequent Event [Line Items]
Debt Instrument, Interest Rate Terms									LIBOR plus 0.95%
Net income (loss) attributable to common stockholders	$ 78,904	$ 69,722	$ 47,841	$ 52,660	$ 85,138	$ 59,666	$ 48,368	$ (33,223)
Equity One Inc. [Member]
Subsequent Event [Line Items]
Business Acquisition, Share Price												$ 68.40
Parent Company [Member]
Subsequent Event [Line Items]
Repayment of fixed rate unsecured notes									$ 150,000	$ 0	$ 300,000
Net income (loss) attributable to common stockholders									$ 249,127	$ 159,949	$ 143,860
Preferred stock, liquidation preferences per share	$ 25				$ 25				$ 25	$ 25
Common Stock, Par or Stated Value Per Share	$ 0.01				$ 0.01				$ 0.01	$ 0.01