Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership - Summary of Dividends/Distributions (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Total Common Stock Dividends / Unit Distributions		$ 91,318	$ 59,014	$ 47,263
Total Preferred Dividends / Distributions				1,019
Common Stock / Operating Partnership Units
Class of Stock [Line Items]
Total Common Stock Dividends / Unit Distributions		$ 91,318	$ 59,014	47,263
Series F Preferred Stock/Units
Class of Stock [Line Items]
Total Preferred Dividends / Distributions	[1],[2]			566
Series G Preferred Stock/Units
Class of Stock [Line Items]
Total Preferred Dividends / Distributions	[1]			$ 453

[1] See the "Preferred Stock or General Partner Preferred Units" section for the redemptions and discussion of pro-rated dividends/distributions for all series of preferred stock or general partner preferred Units occurring during the year ended December 31, 2014.

[2] The coupon rate of our Series F Preferred Stock or Series F Preferred Units was variable. For the period January 1, 2014 through March 6, 2014 (the redemption date), the coupon rate was 6.275%.