Property, Plant and Equipment (Tables)

12 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

Our property, plant and equipment consists of the following at the dates indicated:

	Estimated			March 31,
Description	Useful Lives			2022		2021
	(in years)			(in thousands)
Natural gas liquids terminal and storage assets	2	-	30	$	173,199	$	319,554
Pipeline and related facilities	30	-	40	265,643		264,405
Vehicles and railcars	3	-	25	93,126		126,088
Water treatment facilities and equipment	3	-	30	2,040,687		1,930,437
Crude oil tanks and related equipment	2	-	30	236,805		238,924
Barges and towboats	5	-	30	138,778		137,386
Information technology equipment	3	-	7	48,664		50,220
Buildings and leasehold improvements	3	-	40	151,071		165,679
Land				100,038		100,352
Tank bottoms and linefill (1)				30,443		20,237
Other	3	-	20	15,252		15,054
Construction in progress				55,690		114,796
				3,349,396		3,483,132
Accumulated depreciation				(887,006)		(776,279)
Net property, plant and equipment				$	2,462,390	$	2,706,853

(1)    Tank bottoms, which are product volumes required for the operation of storage tanks, are recorded at historical cost. We recover tank bottoms when the storage tanks are removed from service. Linefill, which represents our portion of the product volume required for the operation of the proportionate share of a pipeline we own, is recorded at historical cost.

Schedule of depreciation expense and capitalized interest expense

The following table summarizes depreciation expense and capitalized interest expense for the periods indicated:

	Year Ended March 31,
	2022		2021		2020
	(in thousands)
Depreciation expense	$	203,783	$	190,204	$	132,791
Capitalized interest expense	$	916	$	2,778	$	650

Amounts in the table above do not include depreciation expense and capitalized interest related to TransMontaigne Product Services, LLC (“TPSL”), as these amounts have been classified as discontinued operations within our consolidated statement of operations for the year ended March 31, 2020 (see Note 18).

Schedule of (gain) loss on disposal or impairment of assets

We record (gains) losses from the sales of property, plant and equipment and any write-downs in value due to impairment within loss on disposal or impairment of assets, net in our consolidated statement of operations. The following table summarizes (gains) losses on the disposal or impairment of property, plant and equipment by segment for the periods indicated:

	Year Ended March 31,
	2022		2021		2020
	(in thousands)
Water Solutions	$	28,068	$	36,492	$	22,491
Crude Oil Logistics	(3,194)		1,766		36
Liquids Logistics	11,750		3,350		(30)
Corporate and Other	—		228		—
Total	$	36,624	$	41,836	$	22,497

During the year ended March 31, 2022, the following transactions were recorded:

•A net loss of $22.3 million related to write-down or write off of certain assets, including facilities damaged by lightning strikes and abandoned projects, and the sale of certain other miscellaneous assets in our Water Solutions segment.

•A loss of $11.8 million on the sale of a natural gas liquids terminals in our Liquids Logistics segment.

•An impairment charge of $5.8 million to write down the value of an inactive saltwater disposal facility that we do not expect to bring back online as a result of suspended operations from increased seismic activity in our Water Solutions segment.

•A loss of $2.2 million from the retirement of certain crude oil terminal assets damaged as part of Hurricane Ida in our Crude Oil Logistics segment.

•A gain of $5.5 million on the sale of our trucking assets in our Crude Oil Logistics segment.

During the year ended March 31, 2021, the following transactions were recorded within our Water Solutions segment:

•An impairment charge of $30.6 million to write down the value of an asset group due to a decline in producer activity, resulting in lower disposal volumes. See Note 6 for a discussion of the impairment of intangible assets within this asset group.

•An impairment charge of $11.9 million to write down the value of certain inactive saltwater disposal facilities that we do not expect to bring back online.

•A net loss of $6.7 million related to write-down or write off of certain assets, including facilities damaged by lightning strikes and abandoned projects, and the sale of certain other miscellaneous assets.

•A gain of $12.8 million related to the sale of certain permits, land and a saltwater disposal facility (see Note 17).

During the year ended March 31, 2020, the following transactions were recorded within our Water Solutions segment:

•An impairment charge of $13.5 million to write down the value of certain inactive saltwater disposal facilities.

•A net loss of $9.0 million related to write-down or write off of certain assets, including abandoned projects, and the sale of certain other miscellaneous assets.