Related Party Transactions (Details)			1 Months Ended			3 Months Ended							12 Months Ended
	Mar. 30, 2016 shares	Jan. 06, 2015 USD ($)	Sep. 30, 2016 shares	Nov. 30, 2015 shares	Jun. 30, 2015 shares	Dec. 31, 2016 USD ($) ft² properties $ / shares shares	Sep. 30, 2016 shares	Jun. 30, 2016 shares	Mar. 31, 2016 shares	Sep. 30, 2015 shares	Jun. 30, 2015 USD ($) shares	Mar. 31, 2015 shares	Dec. 31, 2016 USD ($) ft² properties $ / shares $ / sqft shares	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 26, 2014 properties
Related Party Transaction [Line Items]
Common Stock Issued | shares	6,037,500		3,737,500	3,737,500		19,498,000	620,828,000	485,000,000	6,037,500	608,100,000	26,200,000	342,011,000
Income from affiliate transactions | $													$ 500,000	$ 7,500,000	$ 1,200,000
Net Rentable Area | ft²						71,513							71,513
Net Rentable Area, Temporary Space | ft²						9,140							9,140
Proceeds from Issuance or Sale of Equity | $													$ 750,385,000	310,301,000	572,171,000
Number of Real Estate Properties | properties						341							341
Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Equity Interest in Office Space, Percentage						17.00%							17.00%
Director [Member]
Related Party Transaction [Line Items]
Legal Fees | $													$ 8,000,000	$ 4,600,000	$ 7,500,000
Origen Financial Services [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage						22.90%							22.90%
Investment carrying value | $						$ 0							$ 0
Origen Financial [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage						19.30%							19.30%
Investment carrying value | $						$ 0							$ 0
Origen Financial [Member] | Equity Method Investee [Member]
Related Party Transaction [Line Items]
Income from affiliate transactions | $											$ 7,500,000
Through October 31, 2017 [Member]
Related Party Transaction [Line Items]
Related Party Transactions, Current and Future Base Rent | $ / sqft													17.45
Green Courte [Member]
Related Party Transaction [Line Items]
Proceeds from Issuance or Sale of Equity | $													$ 12,500,000
Business Combination, Consideration Transferred | $		$ 1,048,555,000											$ 1,300,000,000
Common Stock [Member] | Green Courte [Member]
Related Party Transaction [Line Items]
Common Stock Issued | shares													150,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares					25,664								25,664
Series A-4 Preferred Op Units [Member]
Related Party Transaction [Line Items]
Stock Repurchased During Period, Shares | shares													4,066,586
Share Repurchase Price | $ / shares						$ 31.08							$ 31.08
Series A-4 Preferred Op Units [Member] | Mr Rowe [Member]
Related Party Transaction [Line Items]
Stock Repurchased During Period, Shares | shares													156,625
Series A-4 Preferred Op Units [Member] | Mr Goldman [Member]
Related Party Transaction [Line Items]
Stock Repurchased During Period, Shares | shares													22,577
Series A-4 Preferred Op Units [Member] | Green Courte [Member]
Related Party Transaction [Line Items]
Common Stock Issued | shares													200,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares													34,219
Manufactured home community [Member]
Related Party Transaction [Line Items]
Number of Real Estate Properties | properties						226							226			59