Supplemental Cash Flow (Tables)

12 Months Ended

Dec. 31, 2011

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	For the Years Ended December 31,
	2011		2010		2009
Interest (Net of Amounts Capitalized)	$	258,134	$	152,155	$	26,425
Income Taxes	$	144,405	$	118,550	$	131,043