Senior Notes (Tables)

9 Months Ended

Sep. 30, 2012

Senior Notes [Abstract]

Senior Notes [Table Text Block]

Senior notes consist of the following (in thousands):

	September 30, 2012		December 31, 2011
4.75% Senior Notes (due August 2017)	$	1,000,000
6.75% Senior Notes (due June 2018)	500,000		$	500,000
	$	1,500,000	$	500,000