Income per Unit

The following is a summary of basic and diluted income per unit (in thousands, except unit and per unit amounts):



	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Net income available to common unitholders	$	67,834	$	58,644	$	157,612	$	125,693
Weighted average units outstanding—basic	214,288,199		163,077,599		214,149,188		162,280,678
Potentially dilutive common units:
Unvested incentive units	151,265		161,553		150,864		151,807
Forward equity offering	—		216,526		—		251,119
Market performance-based awards	455,809		570,899		473,549		587,400
Weighted average units outstanding—diluted	214,895,273		164,026,577		214,773,601		163,271,004
Income per unit:
Basic	$	0.32	$	0.36	$	0.74	$	0.77
Diluted	$	0.32	$	0.36	$	0.73	$	0.77

We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:



	Three Months Ended June 30,		Six Months Ended June 30,
	2018	2017	2018	2017
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Units	1,898,314	—	1,932,872	—
Potentially dilutive Series F Cumulative Redeemable Preferred Units	—	70,119	—	926,601
Potentially dilutive Series G Cumulative Redeemable Preferred Units	2,353,805	2,157,221	2,396,655	2,297,648
Potentially dilutive Series H Cumulative Redeemable Preferred Units	3,449,255	3,161,182	3,512,048	3,366,963
Potentially dilutive Series I Cumulative Redeemable Preferred Units	2,356,559	2,159,745	2,399,459	2,300,337
Potentially dilutive Series J Cumulative Redeemable Preferred Units	1,880,144	—	1,914,371	—
Total	11,938,077	7,548,267	12,155,405	8,891,549