Subsequent Events (Details) - USD ($)	3 Months Ended									12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Net income (loss) attributable to common stockholders		$ 55,868,000	$ 5,305,000	$ 34,810,000	$ 47,877,000	$ 17,609,000	$ 53,731,000	$ 32,480,000	$ 25,174,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of Board of Directors	$ 12
Equity One Inc. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Common Stock, Par or Stated Value Per Share	$ 0.01
Parent Company [Member]
Subsequent Event [Line Items]
Repayment of fixed rate unsecured notes										$ 300,000,000	$ 450,000,000	$ 150,000,000
Net income (loss) attributable to common stockholders										$ 143,860,000	$ 128,994,000	$ 166,328,000
Stock Issued During Period, Shares, New Issues											13,000,000
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
Parent Company [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Business Acquisition, Share Price	$ 0.45