Basis of Presentation and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Estimated Useful Lives Of Property, Plant And Equipment

Depreciation is computed by the straight-line method over the estimated useful lives of the assets, as follows:



	Years
Gathering systems and pipelines	20
Facilities and equipment	20
Buildings, rights-of-way and easements	20 – 40
Office furniture and fixtures	5 – 10
Vehicles	5

Intangible Assets, Useful life

Certain intangible assets are amortized on a straight-line basis over their estimated economic lives, as follows:



	Weighted-Average Life (years)
Customer accounts	20
Covenants not to compete	5
Trademarks	6 - 8

Intangible assets consisted of the following at December 31, 2016 and 2015 (in millions):



	CEQP				CMLP
	December 31,				December 31,
	2016		2015		2016		2015
Customer accounts	$	541.9	$	583.7	$	541.9	$	583.7
Covenants not to compete	1.0		6.6		1.0		5.6
Gas gathering, compression and processing contracts	325.2		325.2		325.2		325.2
Acquired storage contracts	—		29.0		—		29.0
Trademarks	30.5		31.3		15.0		15.8
	898.6		975.8		883.1		959.3
Less: accumulated amortization	241.2		206.6		230.2		197.9
Total intangible assets, net	$	657.4	$	769.2	$	652.9	$	761.4

The following table summarizes the total of accumulated amortization of intangible assets by the type of intangible asset at December 31, 2016 and 2015 (in millions):



	CEQP				CMLP
	December 31,				December 31,
	2016		2015		2016		2015
Customer accounts	$	162.4	$	130.1	$	162.4	$	130.1
Covenants not to compete	—		2.5		—		1.7
Gas gathering, compression and processing contracts	63.2		44.3		63.2		44.3
Acquired storage contracts	—		18.5		—		18.5
Trademarks	15.6		11.2		4.6		3.3
Total accumulated amortization	$	241.2	$	206.6	$	230.2	$	197.9

Schedule of Goodwill

The following table summarizes the goodwill of our various reporting units (in millions):



	Goodwill Impairments during the Year Ended December 31, 2014		Goodwill at January 1, 2015		Goodwill Impairments during the Year Ended December 31, 2015		Goodwill at December 31, 2015		Impact of Deconsolidation of NE S&T Assets during the Year Ended December 31, 2016		Goodwill Impairments during the Year Ended December 31, 2016		Goodwill Additions during the Year Ended December 31, 2016⁽¹⁾		Goodwill at December 31, 2016
G&P
Fayetteville	$	4.3	$	72.5	$	72.5	$	—	$	—	$	—	$	—	$	—
Granite Wash	14.2		—		—		—		—		—		—		—
Marcellus	—		8.6		—		8.6		—		8.6		—		—
Arrow	—		45.9		—		45.9		—		—		—		45.9
S&T
Northeast Storage and Transportation	—		726.3		—		726.3		726.3		—		—		—
COLT	—		668.3		623.4		44.9		—		44.9		—		—
MS&L
West Coast	—		85.9		85.9		—		—		—		2.4		2.4
Supply and Logistics	—		266.2		99.0		167.2		—		65.5		—		101.7
Storage and Terminals	—		104.2		53.7		50.5		—		14.1		—		36.4
US Salt	2.2		12.6		—		12.6		—		—		—		12.6
Trucking	—		177.9		148.4		29.5		—		29.5		—		—
Watkins Glen	28.1		66.2		66.2		—		—		—		—		—
Total Crestwood Midstream	$	48.8	$	2,234.6	$	1,149.1	$	1,085.5	$	726.3	$	162.6	$	2.4	$	199.0
Barnett (G&P)	—		257.2		257.2		—		—		—		—		—
Total Crestwood Equity	$	48.8	$	2,491.8	$	1,406.3	$	1,085.5	$	726.3	$	162.6	$	2.4	$	199.0