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		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Property and equipment, net
Property and equipment, gross	$ 335,252		$ 335,252		$ 283,252
Less: accumulated depreciation and amortization	(123,697)		(123,697)		(109,909)
Property and equipment, net	211,555		211,555		173,343
Total depreciation and amortization expense	8,600	$ 7,500	16,800	$ 14,700
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	3,906		3,906		2,687
Furniture and fixtures
Property and equipment, net
Property and equipment, gross	4,467		4,467		3,635
Office and computer equipment
Property and equipment, net
Property and equipment, gross	12,598		12,598		11,701
Computer software
Property and equipment, net
Property and equipment, gross	3,411		3,411		3,274
Equipment
Property and equipment, net
Property and equipment, gross	129,907		129,907		114,230
Buildings
Property and equipment, net
Property and equipment, gross	98,043		98,043		69,547
Vehicles
Property and equipment, net
Property and equipment, gross	$ 35,547		$ 35,547		$ 31,582