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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Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.

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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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PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Property and equipment, net
Property and equipment, gross	$ 357,955		$ 357,955		$ 283,252
Less: accumulated depreciation and amortization	(132,534)		(132,534)		(109,909)
Property and equipment, net	225,421		225,421		173,343
Total depreciation and amortization expense	9,400	$ 7,500	26,200	$ 22,200
Land
Property and equipment, net
Property and equipment, gross	47,373		47,373		46,596
Leasehold improvements
Property and equipment, net
Property and equipment, gross	4,121		4,121		2,687
Furniture and fixtures
Property and equipment, net
Property and equipment, gross	4,490		4,490		3,635
Office and computer equipment
Property and equipment, net
Property and equipment, gross	13,702		13,702		11,701
Computer software
Property and equipment, net
Property and equipment, gross	3,238		3,238		3,274
Equipment
Property and equipment, net
Property and equipment, gross	143,435		143,435		114,230
Buildings
Property and equipment, net
Property and equipment, gross	104,720		104,720		69,547
Vehicles
Property and equipment, net
Property and equipment, gross	$ 36,876		$ 36,876		$ 31,582