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 September 30,					Nine Months Ended September 30,
	2018		2017			2018		2017
Net income (loss) available to common unitholders	$	69,968	$	(4,219	)	$	227,580	$	121,474
Weighted average units outstanding—basic	214,289,384		173,460,704			214,199,414		166,048,072
Potentially dilutive common units:
Unvested incentive units	169,100		—			160,117		166,493
Forward equity offering	37,884		—			1,847		150,369
Market performance-based awards	440,800		—			462,632		572,928
Weighted average units outstanding—diluted	214,937,168		173,460,704			214,824,010		166,937,862
Income (loss) per unit:
Basic	$	0.33	$	(0.02	)	$	1.06	$	0.73
Diluted	$	0.33	$	(0.02	)	$	1.06	$	0.73

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



	Three Months Ended September 30,		Nine Months Ended September 30,
	2018	2017	2018	2017
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Units	1,727,724	329,709	1,864,489	109,903
Potentially dilutive Series F Cumulative Redeemable Preferred Units	—	—	—	617,734
Potentially dilutive Series G Cumulative Redeemable Preferred Units	2,142,282	2,193,331	2,311,864	2,262,875
Potentially dilutive Series H Cumulative Redeemable Preferred Units	3,139,291	3,214,098	3,387,795	3,316,008
Potentially dilutive Series I Cumulative Redeemable Preferred Units	2,144,789	2,195,898	2,314,569	2,265,524
Potentially dilutive Series J Cumulative Redeemable Preferred Units	1,711,186	1,045,730	1,846,643	348,577
Total	10,865,272	8,978,766	11,725,360	8,920,621