Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share Reconciliation [Table Text Block]

					Three Months Ended
					March 31,
					2013		2012
Basic:
	Net income				$	35,124	$	62,591
	Basic weighted-average shares outstanding					286,626		285,478
	Basic earnings per share				$	0.12	$	0.22
Diluted:
	Net income				$	35,124	$	62,591
	Basic weighted-average shares outstanding					286,626		285,478
		Effect of dilutive securities:
			Weighted-average convertible debentures			4,125		4,159
			Weighted-average options and restricted
				stock issued to employees		945		380
	Diluted weighted-average shares outstanding					291,696		290,017
	Diluted earnings per share				$	0.12	$	0.22