Property, Plant and Equipment Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Property, Plant and Equipment [Abstract]
Property, plant and equipment additions	$ 380,179	$ 446,767
Net change in related accounts payable and deposits	21,825	(66,423)
Purchases of property, plant, and equipment	$ 402,004	$ 380,344