Equity Method Investments (Tables)

6 Months Ended

Jun. 30, 2017

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Equity Investments in Affiliates

Equity investments in affiliates comprise the following as of the dates indicated:

	June 30, 2017			December 31, 2016
	Ownership	Investment Amount		Ownership	Investment Amount
Bengal	50.0%	$	77.7	50.0%	$	76.1
Odyssey	49.0%	3.0		49.0%	3.0
Mars	48.6%	129.4		48.6%	130.2
Poseidon	36.0%	7.1		36.0%	13.2
Proteus	10.0%	17.9		10.0%	19.1
Endymion	10.0%	20.0		10.0%	20.8
		$	255.1		$	262.4

Schedule of Equity Investments in Affiliates Balance Affected

Our equity investments in affiliates balance was affected by the following during the periods indicated:

	Three Months Ended June 30, 2017						For the Six Months Ended June 30, 2017
	Distributions Received		Income from Equity Investments		Purchase Price Adjustment		Distributions received		Income from Equity investments		Purchase Price Adjustment
Bengal	$	4.6	$	5.4	$	—	$	9.3	$	10.7	$	—
Odyssey	4.5		4.4		—		8.7		8.7		—
Mars	19.0		20.2		—		42.3		41.7		—
Poseidon	9.2		6.4		—		19.3		13.2		—
Proteus	0.8		0.4		—		1.7		0.8		0.3
Endymion	0.8		0.4		—		1.5		0.8		0.1
	$	38.9	$	37.2	—		$	82.8	$	75.9	$	0.4

	Three Months Ended June 30, 2016				Six Months Ended June 30, 2016
	Distributions Received		Income from Equity Investments		Distributions Received		Income from Equity Investments
Bengal	$	7.1	$	5.3	$	13.4	$	10.7
Mars	13.1		12.2		23.0		23.1
Poseidon	11.3		8.1		21.4		15.0
	$	31.5	$	25.6	$	57.8	$	48.8

Summary of Income Statement Data for Equity Method Investments

The following tables present aggregated selected unaudited income statement data for our equity method investments (on a 100% basis):

	Three Months Ended June 30, 2017
	Total Revenues		Total Operating Expenses		Operating Income		Net Income
Statements of Income
Bengal	$	18.1	$	7.1	$	11.0	$	10.9
Odyssey	9.9		1.0		8.9		8.9
Mars	66.4		24.3		42.1		42.1
Poseidon	28.5		8.5		20.0		18.6
Proteus	7.3		3.0		4.3		4.0
Endymion	8.5		3.2		5.3		4.8

	Six Months Ended June 30, 2017
	Total Revenues		Total Operating Expenses		Operating Income		Net Income
Statements of Income
Bengal	$	35.9	$	14.3	$	21.6	$	21.5
Odyssey	19.7		2.0		17.7		17.7
Mars	131.3		44.2		87.1		87.1
Poseidon	57.4		16.6		40.8		38.0
Proteus	15.2		6.1		9.1		8.5
Endymion	17.1		6.3		10.8		10.0

	Three Months Ended June 30, 2016
	Total Revenues		Total Operating Expenses		Operating Income		Net Income
Statements of Income
Bengal	$	17.6	$	7.1	$	10.5	$	10.4
Mars	64.2		20.5		43.7		43.7
Poseidon	32.0		7.7		24.3		23.0

	Six Months Ended June 30, 2016
	Total Revenues		Total Operating Expenses		Operating Income		Net Income
Statements of Income
Bengal	$	35.0	$	13.5	$	21.5	$	21.4
Mars	121.5		39.0		82.5		82.5
Poseidon	59.4		14.3		45.1		42.7