Property, Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2013

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment, Net

Property, plant and equipment, net are comprised of:

	At December 31, 2013			At December 31, 2012
Land		97,360			100,651
Buildings and land improvements		1,431,113			1,256,803
Transfer devices		118,562			120,293
Operating machinery and equipment .		2,723,923			2,837,073
Transportation equipment and vehicles		905,871			895,215
Tools, furniture, fixtures and other		57,137			38,221
		5,333,966			5,248,256
Less: accumulated depreciation		(2,151,401	)		(1,943,719	)
Operating property, plant and equipment, net		3,182,565			3,304,537
Mining plant and equipment		384,805			432,536
Less: accumulated depletion		(77,590	)		(78,491	)
Mining plant and equipment, net		307,215			354,045
Construction-in-progress		3,346,466			3,519,784
Property, plant and equipment, net		6,836,246			7,178,366