Interest Costs (Tables)

v2.4.0.6

Interest Costs (Tables)	6 Months Ended
	Jun. 30, 2012
Interest Costs Disclosure [Abstract]
Interest Costs	The following is a summary of our interest costs:   For the Three Months Ended June 30,   For the Six Months Ended June 30,   2012   2011   2012    2011 Interest costs charged to expense $ 72,770   $ 76,196   $ 149,742    $ 154,414 Interest costs capitalized 8,128   8,068   16,082    15,318 Total interest costs incurred $ 80,898   $ 84,264   $ 165,824    $ 169,732