Certain Balance Sheet Information (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2017

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accrued Liabilities

Accrued expenses and other liabilities consisted of the following at March 31, 2017 and December 31, 2016 (in millions):

	CEQP				CMLP
	March 31,		December 31,		March 31,		December 31,
	2017		2016		2017		2016
Accrued expenses	$	32.6	$	46.9	$	31.4	$	45.5
Accrued property taxes		4.9		4.2		4.9		4.2
Accrued natural gas purchases		3.8		4.9		3.8		4.9
Tax payable		1.7		1.2		—		—
Interest payable		26.1		22.8		26.1		22.8
Accrued additions to property, plant and equipment		1.6		1.7		1.6		1.7
Capital leases		1.2		1.3		1.2		1.3
Deferred revenue		6.2		7.5		6.2		7.5
Total accrued expenses and other liabilities	$	78.1	$	90.5	$	75.2	$	87.9

Accrued expenses and other liabilities consisted of the following at December 31, 2016 and 2015 (in millions):

	CEQP				CMLP
	December 31,				December 31,
	2016		2015		2016		2015
Accrued expenses	$	46.9	$	46.4	$	45.5	$	44.1
Accrued property taxes		4.2		4.8		4.2		4.8
Accrued natural gas purchases		4.9		1.5		4.9		1.5
Tax payable		1.2		0.5		—		0.5
Interest payable		22.8		26.2		22.8		26.2
Accrued additions to property, plant and equipment		1.7		10.4		1.7		10.4
Capital leases		1.3		1.6		1.3		1.6
Deferred revenue		7.5		14.2		7.5		14.2
Total accrued expenses and other liabilities	$	90.5	$	105.6	$	87.9	$	103.3