Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2016

Our intangible assets consist of the following at the dates indicated:



		March 31, 2016				March 31, 2015
	Amortizable Lives	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
		(in thousands)
Amortizable-
Customer relationships	3-20 years	$	852,118	$	233,838	$	890,118	$	159,215
Pipeline capacity rights	30 years	119,636		6,559		119,636		2,571
Water facility development agreement	5 years	14,000		7,700		14,000		4,900
Executory contracts and other agreements	2-10 years	23,920		21,075		23,920		18,387
Non-compete agreements	2-32 years	20,903		13,564		19,762		10,408
Trade names	1-10 years	15,439		12,034		15,439		7,569
Debt issuance costs (1)	3 years	39,942		22,108		33,306		13,443
Total amortizable		1,085,958		316,878		1,116,181		216,493
Non-amortizable-
Customer commitments		310,000		—		310,000		—
Rights-of-way and easements (2)		47,190		—		—		—
Trade names		22,620		—		22,620		—
Total non-amortizable		379,810		—		332,620		—
Total		$	1,465,768	$	316,878	$	1,448,801	$	216,493


(1)	Includes debt issuance costs related to revolving credit facilities. Debt issuance costs related to fixed-rate notes are reported as a reduction of the carrying amount of long-term debt.


(2)	See Note 16 for a discussion of acquired rights-of-way and easements along a planned pipeline route.

Amortization expense is as follows for the periods indicated:



	Year Ended March 31,
Recorded In	2016		2015		2014
	(in thousands)
Depreciation and amortization	$	91,986	$	88,262	$	60,855
Cost of sales	6,700		7,767		6,172
Interest expense	8,942		5,722		4,800
Total	$	107,628	$	101,751	$	71,827

Expected amortization of our intangible assets, exclusive of assets that are not yet amortizable, is as follows (in thousands):