Property, Plant and Equipment

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment

Property, Plant and Equipment

(4)  Property, Plant and Equipment

Property, plant and equipment consisted of the following at:

	September 30,		December 31,
	2017		2016
Land	$	13,492	$	13,492
Land improvements		42,755		42,148
Buildings		140,050		137,092
Machinery and equipment		387,643		382,740
Vehicles		609		513
Furniture and office equipment		5,234		5,113
		589,783		581,098
Less accumulated depreciation		(104,641)		(80,768)
		485,142		500,330
Construction in progress		10,224		16,088
Total property, plant and equipment, net	$	495,366	$	516,418

Total depreciation expense was $8.0 million and $24.9 million and $5.7 million and $18.5 million for the three and nine months ended September 30, 2017 and 2016, respectively.