Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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-Publisher FASB
-Name Accounting Standards Codification
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The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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No definition available.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
PROPERTY AND EQUIPMENT
Total property and equipment	$ 437,851		$ 437,851		$ 429,007
Accumulated depreciation and amortization	(205,534)		(205,534)		(194,575)
Property and equipment, net	232,317		232,317		234,432
Depreciation and amortization of plant and equipment	7,044	$ 6,987	13,649	$ 13,621
Cell development costs
PROPERTY AND EQUIPMENT
Total property and equipment	143,378		143,378		142,144
Land and improvements
PROPERTY AND EQUIPMENT
Total property and equipment	36,932		36,932		36,499
Buildings and improvements
PROPERTY AND EQUIPMENT
Total property and equipment	87,416		87,416		87,034
Railcars
PROPERTY AND EQUIPMENT
Total property and equipment	17,299		17,299		17,299
Vehicles and other equipment
PROPERTY AND EQUIPMENT
Total property and equipment	128,931		128,931		122,697
Construction in progress
PROPERTY AND EQUIPMENT
Total property and equipment	$ 23,895		$ 23,895		$ 23,334