Stockholders' Equity of the Company (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Schedule of common stock sales under the at-the-market offering

The following table sets forth information regarding sales of our common stock under our at-the-market offering programs for the years ended December 31, 2017, 2016 and 2015:

	Year Ended December 31,
	2017		2016		2015
	(in millions, except share data)
Shares of common stock sold during the period	235,077		451,398		1,866,267
Aggregate gross proceeds	$	17.7	$	32.3	$	140.1
Aggregate net proceeds after selling commissions	$	17.5	$	31.9	$	138.2

Schedule of accrued dividends and distributions

The following tables summarize accrued dividends and distributions for the noted outstanding shares of common stock, preferred stock, and noncontrolling units as of December 31, 2017 and 2016:

	December 31,
	2017		2016 (1)
	(in thousands)
Dividends and Distributions payable to:
Common stockholders	$	41,914	$	212,074
Noncontrolling common unitholders of the Operating Partnership	883		5,418
RSU holders (2)	651		3,158
Total accrued dividends and distribution to common stockholders and noncontrolling unitholders	43,448		220,650
Preferred stockholders (3)	—		1,656
Total accrued dividends and distributions	$	43,448	$	222,306

______________________

(1) Dividends and distributions payable to common stockholders, noncontrolling common unitholders of the Operating Partnership and RSU holders in 2016 include a special cash dividend of $1.90 per share that was declared by the Company’s Board of Directors on December 13, 2016. On January 13, 2017, the Company paid $184.3 million of special cash dividends to stockholders of record on December 30, 2016. This special dividend payment was in addition to the $36.4 million of regular dividends also paid on January 13, 2017 to common stockholders, unitholders and RSU holders of record on December 30, 2016.

(2) The amount includes the value of the dividend equivalents that will be paid with additional RSUs (see Note 15 “Share-Based Compensation” for additional information).

(3) The Series G and Series H Preferred stock were redeemed in March 2017 and August 2017, respectively, and the Company did not have any preferred stock outstanding as of December 31, 2017.

Schedule of outstanding shares of common stock, preferred stock and noncontrolling units

	December 31,
	2017	2016
Outstanding Shares and Units:
Common stock (1)	98,620,333	93,219,439
Noncontrolling common units	2,077,193	2,381,543
RSUs (2)	1,488,724	1,395,189
Series G Preferred stock (3)	—	4,000,000
Series H Preferred stock (3)	—	4,000,000

______________________

(1) The amount includes nonvested shares.

(2) The amount includes nonvested RSUs. Does not include 665,110 and 659,051 market measure-based RSUs because not all the necessary performance conditions have been met as of December 31, 2017 and2016, respectively. Refer to Note 15 “Share-Based Compensation” for additional information.

(3) The Series G and Series H Preferred stock were redeemed in March 2017 and August 2017, respectively.