Property, Plant and Equipment Depreciation Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule of depreciation expense [Line Items]
Total depreciation expense	$ 111,760	$ 97,779	$ 219,796	$ 194,077
Cost of Sales [Member]
Schedule of depreciation expense [Line Items]
Total depreciation expense	101,594	90,805	201,361	179,973
Selling, General and Administrative Expense [Member]
Schedule of depreciation expense [Line Items]
Total depreciation expense	3,926	3,860	7,362	7,995
Research and Development Expense [Member]
Schedule of depreciation expense [Line Items]
Total depreciation expense	$ 6,240	$ 3,114	$ 11,073	$ 6,109