Earnings Per Unit (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings per Common and Subordinated Unit

The following table sets forth the computation of basic and diluted earnings per common and subordinated unit:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands, except per unit amounts)
NET INCOME (LOSS)	$	28,690		$	54,174		$	70,647		$	115,757
Net (income) loss attributable to noncontrolling interests	48			16			22			7
Distributions on Series A redeemable preferred units	—			(672		)	(25		)	(1,786		)
Distributions on Series B cumulative convertible preferred units	(5,250		)	—			$	(10,500	)	$	—
NET INCOME (LOSS) ATTRIBUTABLE TO THE GENERAL PARTNER AND COMMON AND SUBORDINATED UNITS	$	23,488		$	53,518		$	60,144		$	113,978
ALLOCATION OF NET INCOME (LOSS):
General partner interest	$	—		$	—		$	—		$	—
Common units	17,540			32,100			41,877			67,617
Subordinated units	5,948			21,418			18,267			46,361
	$	23,488		$	53,518		$	60,144		$	113,978
NET INCOME (LOSS) ATTRIBUTABLE TO LIMITED PARTNERS PER COMMON AND SUBORDINATED UNIT:
Per common unit (basic)	$	0.17		$	0.33		$	0.40		$	0.69
Weighted average common units outstanding (basic)	105,250			97,990			104,516			97,448
Per subordinated unit (basic)	$	0.06		$	0.22		$	0.19		$	0.49
Weighted average subordinated units outstanding (basic)	96,329			95,388			95,864			95,269
Per common unit (diluted)	$	0.17		$	0.33		$	0.40		$	0.69
Weighted average common units outstanding (diluted)	105,250			97,990			104,516			97,448
Per subordinated unit (diluted)	$	0.06		$	0.22		$	0.19		$	0.49
Weighted average subordinated units outstanding (diluted)	96,329			95,388			95,864			95,269