Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

As of December 31, 2015 and 2014, the Company’s property, plant and equipment included the following:

	2015			2014
Land and land improvements	$	15,426		$	15,411
Buildings	181,707			180,304
Machinery and equipment	1,764,477			1,777,299
Construction in progress	65,197			37,630
Total property, plant and equipment, gross	2,026,807			2,010,644
Accumulated depreciation	(1,222,969		)	(1,167,269		)
Total property, plant and equipment, net	$	803,838		$	843,375